
How to Plan a Trip to North East India: Permits & Cost Guide
Knowing how to plan a trip to north east india starts with understanding one basic fact: North East India is not a single destination you visit in one go. It is a vast region of seven sister states (and one brother state, Sikkim) spanning over 260,000 square kilometers, with drastically different entry permits, terrain realities, and seasonal travel windows. A road trip through the cloud-filled valleys of Meghalaya requires zero paperwork, but crossing into adjacent Arunachal Pradesh or heading to Nathu La Pass in Sikkim without the correct government permit will bring your vehicle to an immediate halt at military checkposts.
Whether you are a couple looking for quiet mountain homestays, a family planning a winter holiday, or a group seeking offbeat Himalayan routes, this comprehensive guide breaks down exact permit requirements, real 2026 vehicle and accommodation costs, transit logistics, and plug-and-play itineraries so you can execute your trip smoothly.
Understanding Inner Line Permits (ILP) & State Entry Rules
Before booking flights or reserving hotel rooms, you must address entry compliance. The Inner Line Permit (ILP) is an official travel document issued by state governments under the Bengal Eastern Frontier Regulation of 1873. It allows domestic Indian citizens to enter and stay in specified protected states for a temporary duration. An ILP grants entry only—it gives zero rights to purchase land, conduct business, or reside permanently.
While navigating international travel paperwork like planning a trip to Japan from India requires careful visa preparation, domestic travel across parts of North East India demands a similar level of document compliance. Four states require an ILP for all Indian citizens, one state requires Protected Area Permits (PAP) for high-altitude border zones, and three states require no permits at all.
| State | Permit Needed? | Official Portal | Fee (Per Person) | Processing Time |
|---|---|---|---|---|
| Arunachal Pradesh | YES (ILP) | eilp.arunachal.gov.in | ₹300 (1–3 days) ₹500 (4–14 days) | 24–48 Hours |
| Nagaland | YES (ILP) | ilp.nagaland.gov.in | ₹200 (30 days) | 4–24 Hours |
| Manipur | YES (ILP) | manipurilponline.mn.gov.in | ₹100 (30 days) | 2–3 Days (Online) 15 Mins (Airport Kiosk) |
| Mizoram | YES (ILP) | ilp.mizoram.gov.in | ₹350–365 (7 days) | 2–24 Hours |
| Sikkim | NO for main state; YES for PAP zones | Via registered local operator (Tourism Dept) | ₹200 nominal (Nathu La); Included in local tour packages | 1 Day in advance |
| Assam | NO | N/A | N/A | N/A |
| Meghalaya | NO | N/A | N/A | N/A |
| Tripura | NO | N/A | N/A | N/A |
State-by-State Permit Rules for Indian Citizens
1. Arunachal Pradesh (eILP Required)
You must apply for a Tourist Inner Line Permit online at eilp.arunachal.gov.in. The standard tourist fee is tiered: ₹300 per head for stays up to 3 days, and ₹500 per head for stays ranging from 4 to 14 days. You will need a passport-size photo (20–50 KB, light background) and a government photo ID (Aadhaar, Voter ID, Passport, or Driving License).
Crucial Rule: You must select every single district on the portal that your itinerary touches (e.g., West Kameng, Tawang, Papum Pare, Lower Subansiri). If a district is omitted from your printed ILP, state police checkposts will deny your vehicle entry into that district.
Special Bum La Pass & Sangetsar Lake Clearance: An eILP allows you into Tawang town, but it does not grant access to Bum La Pass (the Indo-China border) or Sangetsar (Madhuri) Lake. To visit these zones, your driver or local hotelier in Tawang must apply for separate Army and District Collector (DC) permits one day prior. Outside vehicles (including commercial cars registered in Assam or Guwahati) are strictly barred; you must hire a local Tawang-registered 4×4 Bolero or Sumo for this day trip (approx. ₹5,000–5,500 per vehicle).
2. Nagaland (eILP Required)
Applications are managed via ilp.nagaland.gov.in at a cost of ₹200 for a 30-day domestic tourist permit. Offline paper applications were discontinued, making online registration mandatory before travel.
Important Border Expansion: ILP enforcement covers Dimapur, Chumoukedima, and Niuland districts. Previously, Dimapur was exempt as a commercial rail head; today, travelers arriving at Dimapur Railway Station or Dimapur Airport must hold a valid digital ILP before leaving the transit hub.
3. Manipur (Temporary ILP Form C)
Apply online at manipurilponline.mn.gov.in for a temporary 30-day permit costing ₹100. Applicants can complete Aadhaar OTP verification online for quick approval. If you arrive by air at Bir Tikendrajit International Airport in Imphal, self-service digital ILP kiosks near baggage pickup issue on-arrival permits within 10–15 minutes upon presenting a photo ID and hotel reservation contact details.
4. Mizoram (Temporary ILP)
Apply via ilp.mizoram.gov.in for a 7-day temporary permit costing ~₹350–365 per applicant (including online processing and UPI fees). On-arrival permits are available at Lengpui Airport (Aizawl) and land checkposts like Vairengte and Bairabi, provided you present return flight/train tickets and contact details of your stay.
5. Sikkim (Protected Area Permits – PAP)
Indian citizens do not need an ILP to enter Sikkim or stay in major hubs like Gangtok, Pelling, Ravangla, and Namchi. However, Protected Area Permits (PAP) are mandatory for sensitive border and high-altitude destinations:
- East Sikkim: Tsomgo (Changu) Lake, Baba Mandir, and Nathu La Pass.
- North Sikkim: Lachen, Lachung, Yumthang Valley, Zero Point, and Gurudongmar Lake.
PAPs are processed 24 hours in advance through Sikkim Tourism-registered tour agencies or official counters in Gangtok. Government permit administrative fees are modest (roughly ₹200 per head for Nathu La), but travel is packaged into dedicated local SUV hire (typically ₹6,000 to ₹8,000 per vehicle per day trip).
CRITICAL SIKKIM IDENTIFICATION WARNING: Aadhaar Cards and PAN Cards are NOT accepted by Sikkim Tourism or the Indian Army for Nathu La Pass or North Sikkim PAP issuing. Indian tourists must carry an original Voter ID, Driving License, or Passport along with 4 physical passport-sized photos. Minors under 18 must carry their original Birth Certificate.
Rules for Foreign Nationals (RAP / PAP)
Foreign passport holders (including OCI cardholders) cannot use standard domestic eILPs. They require Restricted Area Permits (RAP) or Protected Area Permits (PAP) processed via the official e-FRRO portal or Indian diplomatic missions abroad. Foreigners must travel in groups of at least two through registered tour operators in protected zones like Arunachal Pradesh and North Sikkim. Foreign nationals are strictly prohibited from visiting military border points, including Nathu La Pass, Gurudongmar Lake, and Bum La Pass.

Transit Logistics & Vehicle Hire Costs
Planning logistics in North East India requires adjusting how you think about travel speed. Because of sharp elevation gains, single-lane mountain corridors, and army truck convoys, average vehicle speeds across mountain passes fall between 20 km/h and 30 km/h. A distance of 150 km that takes 2.5 hours on a plain highway routinely takes 6 to 8 hours in the hills.
Primary Transit Hubs
- Guwahati (Assam): Lokpriya Gopinath Bordoloi International Airport (GAU) & Guwahati Railway Station (GHY). This is the primary entry hub for Assam, Meghalaya, Arunachal Pradesh, and Nagaland.
- Bagdogra / Siliguri (West Bengal): Bagdogra Airport (IXB) & New Jalpaiguri Railway Station (NJP). The default entry node for Sikkim and Darjeeling. (Pakyong Airport in Sikkim has limited seasonal flight operations due to weather delays).
- Dibrugarh (Assam): Entry node for Eastern Arunachal Pradesh (Pasighat, Roing, Tezu) and Mon (Nagaland).
- Dimapur (Nagaland): Railway and flight hub for Kohima and Khonoma.
- Imphal (Manipur) & Aizawl (Mizoram): Direct flight connections to their respective capital regions.
Vehicle Rental & Shared Transport Rates (2026 Prices)
Public transport in hilly regions relies on shared Tata Sumos and Mahindra Boleros. Private commercial vehicles with certified mountain drivers are standard for multi-day circuits.
| Transport Option | Average Daily / Seat Cost | Best Suited For |
|---|---|---|
| Shared Tata Sumo / Bolero | ₹400 – ₹1,100 per seat | Solo travelers, budget backpackers |
| Sedan (Dzire/Etios) with Driver | ₹3,500 – ₹4,500 per day | Couples exploring plains & light hills (Assam/Shillong) |
| Standard SUV (Ertiga/Scorpio) | ₹4,500 – ₹5,500 per day | Small families (3–4 pax), Meghalaya & North Bengal |
| Premium SUV (Innova Crysta) | ₹5,999 – ₹7,500 per day | Families/groups, high-altitude passes (Tawang/Sikkim) |
| Tempo Traveller (13–17 Seater) | ₹10,000 – ₹13,000 per day | Large group trips (8+ pax) |
Real Route Cost Benchmarks
- Guwahati Airport to Shillong City (One Way): Shared Sumo/Taxi from Khanapara costs ₹400–₹500 per seat. A private sedan costs ₹2,500–₹3,200. A private Innova costs ₹4,000–₹4,500 total.
- Guwahati to Tawang (7-Day Dedicated SUV Circuit): A private Innova Crysta costs ₹5,000–₹5,800 per day on a garage-to-garage basis (total transport cost: ~₹35,000–₹40,000 including driver overnight allowance and fuel).
- Gangtok to Tsomgo Lake + Nathu La Pass (Day Trip): Private SUV package, including local vehicle permits, costs ₹6,000–₹8,000.
Self-Drive Caution & Sela Tunnel Infrastructure
While self-drive cars (Zoomcar, Thar rentals) are available out of Guwahati, self-drive rental vehicles are strictly barred from entering high-altitude restricted areas such as Nathu La and North Sikkim (beyond Chungthang) in Sikkim, and Bum La Pass in Arunachal Pradesh. Local police checkpoints require commercial passenger licenses (Yellow Board) driven by local, registered mountain drivers.
The Sela Tunnel Advantage: Inaugurated at an altitude of 13,000 feet, the Sela Tunnel in Arunachal Pradesh now provides all-weather connectivity on the Tezpur-Tawang axis. It bypasses the treacherous, ice-covered turns of the old Sela Pass top during peak winter months, reducing travel time by nearly 60 minutes and drastically improving safety.

Realistic Trip Budgets & Package Cost Breakdowns
To plan accurately, evaluate costs by breaking your budget into accommodation, daily food, and localized mountain transport. The following tables provide realistic per-person estimates (excluding long-distance flight or train fares to entry hubs like Guwahati or Bagdogra).
Tiered Daily Spending Estimates (Per Person)
| Traveler Category | Accommodation / Night | Food & Extras / Day | Total Daily Spend |
|---|---|---|---|
| Budget (Solo / Hostels / Shared) | ₹500 – ₹1,200 | ₹400 – ₹700 | ₹1,800 – ₹2,500 |
| Mid-Range (Couples / 3-Star Stays) | ₹2,500 – ₹4,500 | ₹1,000 – ₹1,800 | ₹4,500 – ₹6,500 |
| Comfort / Luxury (Resorts / Premium) | ₹7,000 – ₹15,000+ | ₹2,500 – ₹4,000 | ₹10,000 – ₹18,000+ |
Estimated 7-Day Package Costs by Circuit
Circuit A: Meghalaya & Assam Gateway (7 Days / 6 Nights)
- Budget (Shared Sumos + Homestays): ₹12,000 – ₹16,000 per person.
- Mid-Range (Dedicated Sedan/Ertiga + 3-Star Hotels/Homestays): ₹22,000 – ₹32,000 per person (based on 2 pax).
- Comfort / Family (Dedicated Innova + Boutique Resorts like Ri Kynjai / Kaziranga Luxury Lodges): ₹45,000 – ₹65,000 per person.
Circuit B: Arunachal Tawang Circuit (7 Days / 6 Nights)
- Budget (Shared Sumos + Basic Monpa Homestays): ₹15,000 – ₹19,000 per person.
- Mid-Range (Dedicated SUV + Standard Hotels/Deluxe Homestays): ₹23,000 – ₹32,000 per person (based on 4 pax sharing).
- Comfort / Family (Dedicated Innova Crysta + Best Available Stays + Local Bum La 4×4 Bolero): ₹38,000 – ₹52,000 per person.
Actionable Itineraries
Circuit 1: The Gateway Circuit — Assam & Meghalaya (7 Days)
Best For: First-time visitors, families with children, senior citizens, and short holidays.
Permits Needed: None.
- Day 1: Arrival in Guwahati to Shillong (100 km / 3 hrs). Land at Guwahati (GAU). Meet your driver and stop by scenic Umiam Lake (Barapani) en route to Shillong. Check into your hotel; spend the evening exploring Police Bazaar.
- Day 2: Shillong to Laitlum Canyons & Cherrapunji (60 km / 2.5 hrs). Drive early to Laitlum Canyons for sweeping views of deep ravines. Visit Elephant Falls before proceeding to Cherrapunji (Sohra). Overnight in Cherrapunji.
- Day 3: Cherrapunji Waterfall & Cave Exploration. Tour Nohkalikai Falls, Mawsmai Cave, Arwah Cave, and the Seven Sisters Falls viewpoint. Enjoy dinner at a local Khasi café.
- Day 4: Nongriat Trek or Garden of Caves. Active travelers can tackle the day trek down 3,000 steps to the Nongriat Double Decker Living Root Bridge. Leisure travelers can visit the Garden of Caves, Wei Sawdong Falls, and Nohsngithiang.
- Day 5: Cherrapunji to Dawki & Mawlynnong to Shillong. Drive to Dawki for a boat ride on the crystal-clear Umngot River along the Bangladesh border. Visit Mawlynnong village (renowned for its cleanliness and local bamboo sanitation practices). Return to Shillong for overnight stay.
- Day 6: Shillong to Kaziranga National Park (250 km / 5.5 hrs). Depart hills for the plains of Assam. Check into a safari resort near Kaziranga. Attend an evening Assamese cultural show and Bihu dance performance at Kaziranga Orchid Park.
- Day 7: Kaziranga Safari & Departure from Guwahati (220 km / 4.5 hrs). Take an early morning Jeep Safari in the Central (Kohora) or Western (Bagori) Range to spot the one-horned rhinoceros. Drive back to Guwahati Airport for evening departure flights.
Circuit 2: Eastern Himalayan High Altitude — Guwahati to Tawang (7 Days)
Best For: Mountain lovers, cultural enthusiasts, and scenic road-trippers.
Permits Needed: Arunachal eILP + local Bum La Pass Army Permit.
- Day 1: Guwahati to Nameri / Bhalukpong (245 km / 5.5 hrs). Arrive at Guwahati; drive towards the border town of Bhalukpong or Nameri National Park. Rest near the banks of the Kameng River.
- Day 2: Bhalukpong to Dirang (140 km / 5 hrs). Drive along the winding Kameng River valley. Visit the Tipi Orchidarium, local Monpa apple orchards, and the historical Dirang Dzong (fortress). Overnight in Dirang.
- Day 3: Dirang to Tawang via Sela Tunnel (140 km / 6 hrs). Ascend through the newly built Sela Tunnel (13,700 ft). Stop at Jaswant Garh War Memorial to pay respects to the 1962 war hero. Marvel at the cascading Nuranang (Jung) Waterfall before reaching Tawang town.
- Day 4: Tawang Local Culture & History. Visit Tawang Monastery (Galden Namgey Lhatse), the largest Buddhist monastery in India, founded in 1680. Visit Urgelling Monastery (birthplace of the 6th Dalai Lama) and the giant Buddha Statue. Attend the evening Light & Sound show at the Tawang War Memorial.
- Day 5: High-Altitude Excursion: Bum La Pass & Sangetsar Lake. Board a local 4×4 Bolero for the drive to Bum La Pass (15,200 ft) at the Indo-China border. Visit PTSO Lake and Sangetsar (Madhuri) Lake. Return to Tawang by late afternoon.
- Day 6: Tawang to Bomdila (180 km / 6 hrs). Drive back across the Sela corridor to Bomdila. Explore the Bomdila Monastery (Gontse Gaden Rabgyel Lling Monastery) and local craft market viewpoints.
- Day 7: Bomdila to Guwahati Airport (270 km / 7.5 hrs). Start by 6:00 AM to drive down through Assam plains directly to Guwahati Airport for your return flight.
Circuit 3: Culture & Adventure — Nagaland (5 to 6 Days)
Best For: Tribal culture, photography, hiking, and heritage explorers.
Permits Needed: Nagaland eILP.
- Day 1: Arrive Dimapur to Kohima (70 km / 3 hrs). Land at Dimapur Airport or arrive by train. Clear the ILP checkpost at the station/airport. Drive uphill to Kohima town.
- Day 2: Kohima History & Kisama Village. Visit the Kohima War Cemetery (commemorating the Battle of Kohima in WWII) and Kohima Cathedral. Spend the afternoon in Kisama Heritage Village, the venue for the annual Hornbill Festival (held every year from Dec 1 to Dec 10).
- Day 3: Day Trip to Khonoma Green Village. Travel 20 km to Khonoma, recognized as Asia’s first Green Village. Take a guided walking tour through terraced paddy fields, ancient fort ruins, and Angami Naga age-group traditional dormitories (Morungs).
- Day 4: Base Trek to Dzukou Valley. Drive to the Viswema village trek point. Hike 5–6 hours up the steep stone steps to reach the ridge line opening into Dzukou Valley. Stay overnight in basic valley dormitories or tents under the stars.
- Day 5: Dzukou Valley Exploration & Return to Kohima. Explore the valley floor and natural caves. Trek down to the Jakhama/Viswema exit road. Transfer back to your homestay in Kigwema or Kohima.
- Day 6: Kohima to Dimapur Departure (70 km / 3 hrs). Drive back down to Dimapur for your onward train or flight connection.
Best Time to Visit & Seasonal Weather Matrix
North East India experiences three distinct weather phases: crisp mountain winters, flower-rich springs, and intense monsoon rains. Selecting your travel window depends on the specific states you plan to visit.
| Region | Peak Season (Best Time) | Monsoon (Avoid High Altitudes) | Major Festivals & Dates |
|---|---|---|---|
| Meghalaya & Assam | Oct – April | May – Sept (Best for raging waterfalls) | Ziro Fest (Sept), Majuli Raas (Nov) |
| Arunachal (Tawang) | Oct – April | June – August (Landslide Risk) | Torgya Fest (Jan), Losar (Feb/Mar) |
| Nagaland | Oct – May | June – Sept | Hornbill Festival (Dec 1 – Dec 10) |
| Sikkim | March – May, Oct – Dec | July – August (Road Blockages) | Saga Dawa (May/June), Losoong (Dec) |
Seasonal Weather Breakdown
- Winter (October to February): Expect clear blue skies, dry road conditions, and pleasant daytime temperatures in plains and mild hills. This is the optimal window for rhino safaris in Kaziranga, road trips in Meghalaya, and attending cultural spectacles like the Hornbill Festival in Nagaland. High-altitude passes (Sela Pass, Gurudongmar, Yumthang) drop below zero degrees Celsius and feature heavy snow cover.
- Spring (March to May): As snow recedes, wild orchids and rhododendrons bloom across the Sangti Valley in Arunachal and Yumthang Valley in Sikkim. Day temperatures in Gangtok, Shillong, and Dirang remain ideal for walking tours and valley hikes.
- Monsoon (June to September): Meghalaya (home to Mawsynram and Cherrapunji) receives intense rainfall. While water features like Nohkalikai, Krang Suri, and Wei Sawdong roar at maximum beauty, mountain routes in North Sikkim and West Kameng (Arunachal) face frequent landslips and mudslides. Unless traveling specifically for monsoon waterfall photography in Meghalaya, avoid high-altitude mountain driving during July and August.
Practical Tips, Common Traps & Essential Mistakes to Avoid
- Beware the “Early Sunset” Realities: North East India sits far east within Indian Standard Time (IST). Sunlight appears as early as 4:30 AM during summer, and **it gets pitch dark by 4:30 PM to 5:00 PM during winter**. Start every daily road drive by 6:30 AM or 7:00 AM. Avoid mountain driving after 5:30 PM, as mountain fog and unlit narrow turns make night driving dangerous.
- Network Connectivity and SIM Selection: Jio and Airtel deliver fast 4G and 5G connections in state capitals and major hubs (Guwahati, Shillong, Gangtok, Kohima, Imphal). However, in remote border sectors—including Lachen, Gurudongmar, Sangetsar Lake, Mon, and Bum La—BSNL is often the only network with active towers. Carry a secondary pre-paid BSNL SIM card for remote mountain legs.
- Cash Reliance in Remote Regions: Digital UPI payments (PhonePe, GPay) work smoothly in central cafes and hotels in Shillong, Guwahati, and Gangtok. However, cash is mandatory for entry tickets, local guides, tea stalls, and rural homestays in places like Nongriat, Dzukou base camp, North Sikkim, and Tawang border points. ATMs in intermediate towns like Bomdila or Sohra frequently run out of currency notes during peak tourist weeks. Always carry ₹5,000 to ₹8,000 in physical cash per person.
- Vegetarian & Jain Food Availability: Contrary to popular misconceptions, finding pure vegetarian and Jain meals across established tourist tracks is straightforward. A steady influx of domestic travelers ensures that towns like Guwahati, Shillong, Gangtok, Kaziranga, and Tawang feature dedicated Marwari, Punjabi, and South Indian vegetarian restaurants. At rural Monpa or Khasi homestays, simple and fresh meals of Dal, Rice, local potato preparations (Aloo Sabzi), and steamed vegetables are reliably served upon request.
- High Altitude Sickness (AMS) Preparedness: Rapid ascents from Dirang (5,000 ft) to Sela Pass (13,700 ft) or Bum La Pass (15,200 ft), as well as Gangtok (5,400 ft) to Gurudongmar Lake (17,800 ft), can trigger Acute Mountain Sickness (AMS). Drink plenty of water, avoid alcohol during mountain transit, carry Diamox (after consulting your physician), and consider carrying small portable oxygen cans (sold at local pharmacies in Tawang and Gangtok for ₹600–₹800).
How TravelDham Simplifies Your Northeast Journey
Organizing a multi-state Northeast trip involves coordinating regional permits, finding certified mountain drivers, and securing quality homestays across areas with limited online booking options. TravelDham provides dedicated support to streamline your planning:
- Permit Filing Desk: Avoid form rejections or processing delays. The TravelDham team manages government eILP applications for Arunachal Pradesh, Nagaland, Manipur, and Mizoram, and secures local Army permits for Bum La Pass and Nathu La.
- Verified Mountain Transport: We provide commercial yellow-plate SUVs (Innova Crysta, Scorpio, Bolero) driven by mountain-certified local drivers operating on transparent, daily garage-to-garage rates with zero hidden charges.
- Tailored Cross-Border Routes: Whether you are planning a 5-day Meghalaya family vacation or a 12-day complete Arunachal-Assam-Meghalaya circuit, TravelDham designs customized itineraries matched to your pacing, budget, and dietary preferences.
Frequently Asked Questions
Q: Can I get an Inner Line Permit on arrival if I forgot to apply online?
For Manipur (at Imphal Airport) and Mizoram (at Lengpui Airport), temporary on-arrival permits can be issued at airport arrival desks. However, for Arunachal Pradesh and Nagaland, online advance application is strictly mandatory. Police checkposts at Bhalukpong, Dirang, or Dimapur will deny entry and turn back travelers who do not present an approved digital eILP.
Q: Is an Aadhaar Card valid for all travel permits across North East India?
Aadhaar works for Arunachal Pradesh, Nagaland, Manipur, and Mizoram eILPs. However, Sikkim Tourism and the Indian Army do NOT accept Aadhaar or PAN Cards for Nathu La Pass or North Sikkim Protected Area Permits (PAPs). Travelers must present an original Voter ID, Driving License, or Passport along with physical photos.
Q: Do I need an ILP if I am transiting through Dimapur to travel directly to Manipur?
Yes. Nagaland expanded ILP enforcement across the entire district of Dimapur. Domestic travelers arriving by train or flight at Dimapur must either hold a valid Nagaland eILP or show verified onward transit documents at station and airport checkposts.
Q: Is North East India safe for solo female travelers and families?
Yes. North East India is consistently recognized as one of the safest regions in India for female and family travelers. Tribal communities throughout Meghalaya, Mizoram, Nagaland, and Arunachal maintain strong traditions of social safety and respect. standard safety precautions apply regarding late-night road driving in remote mountain zones.
Q: How far in advance should I book private vehicles and homestays for peak season?
For high-demand windows—such as the Hornbill Festival in Nagaland (December 1–10), peak autumn in Meghalaya (October–November), or summer holidays in Sikkim and Tawang (April–May)—book your private vehicles and homestays at least 45 to 60 days in advance. Vehicle availability for commercial SUVs (like Innova Crysta) in mountain hubs becomes severely restricted during these months.