Tawang to Bum La: Distance, Road, Which Car You Need and Cost (2026)

Bum La Pass is about 37 km from Tawang, but the drive takes 2 to 3 hours each way. The road climbs from about 10,000 ft to roughly 15,200 ft on a narrow, partly unpaved Army road, and it is often icy from December to March. Add stops at the lakes and the border, and the round trip takes most of a day.

The single most important thing to know: you cannot take your own car or an outside taxi to Bum La. Only registered local Tawang taxis, with the driver's details on your Bum La permit, are allowed past the Army check posts. This guide covers the distance, the road, the car, the cost and how to plan the day.

Tawang to Bum La distance and drive time

Times are for dry roads. After snow, the same drive can take much longer, or the Army may stop vehicles altogether. Distances are approximate because the road has several Army detours.

Why you need a local Tawang taxi

The road to Bum La runs through an Army-controlled area right up to the Line of Actual Control. Access is managed in three layers:

1. The Bum La permit is issued in Tawang and cleared by the Army. It lists every passenger, the vehicle number and the driver. Since August 2026 the application can reportedly be made online at bumlapass.in for Rs 100 per person, but the vehicle and driver details still come from a registered Tawang taxi.
2. Only registered Tawang taxis are put on these permits. Cars from outside the district, rented self-drive cars and your own vehicle are not accepted, even with an ILP.
3. Army check posts on the way compare the permit with the people and the vehicle. If the vehicle doesn't match, you turn back.

This is why the car you drove up from Guwahati stays parked in Tawang for the day. Tawang drivers also know the road in snow, carry chains in winter, and know which stretches the Army has closed that morning.

Which car is best for Bum La?

Local operators use high-clearance vehicles: mostly Mahindra Scorpio, Bolero and Tata Sumo, sometimes an Innova. A 4x4 helps after fresh snow. You don't choose the exact model, but you can ask for:

• A vehicle with working heating. The pass is below freezing for much of the year.
• Snow chains in winter (roughly December to March).
• No more than 5 or 6 passengers, so everyone gets a window and room for warm layers.

A hatchback or sedan is never used on this road, and you wouldn't want one.

How much does a Bum La taxi cost?

The trip is priced per vehicle, not per person. In 2026, Tawang operators commonly quote about Rs 5,500 to Rs 6,500 per vehicle for Bum La with Madhuri Lake. The price usually includes the driver, fuel and the permit legwork. Check whether it includes:

• The Bum La permit fee per person (a small charge collected by the DC office).
• Madhuri Lake and PT Tso Lake. Some quotes cover only the pass.
• A stop at the Y-Junction and the war memorial on the way back.

Prices go up after heavy snow and in peak weeks around Christmas, New Year and the Tawang Festival.

Book it with us: our Bum La Pass day trip from Tawang is Rs 6,499 per vehicle for up to 6 people, with the permitted vehicle, driver and permit run included. If you also want a day around town, add Tawang local sightseeing.

The day, step by step

1. The day before, by noon: share your documents with the operator for the permit: ILP printout, original photo ID, copies and passport photos. If you apply online at bumlapass.in yourself, give the operator your permit details so the vehicle can be added. See our Bum La permit guide for the full list.
2. Evening: the driver confirms the permit and tells you whether the road is open.
3. 6 to 7 am: leave Tawang. Entry at the Bum La check post is reported to be between 7 and 10:30 am, and early starts also beat afternoon clouds and wind.
4. Mid-morning: Bum La. Army personnel brief visitors at the border. Follow their instructions on photography.
5. Late morning: Madhuri Lake, and PT Tso if included.
6. Afternoon: back in Tawang, often by 2 to 4 pm.

Altitude: don't go on your first day

Bum La is about 5,000 ft higher than Tawang. Spend at least one night in Tawang first, ideally two. Drink water, skip alcohol the night before, and come back down if anyone gets a bad headache, vomiting or breathlessness. Our Guwahati to Tawang drive and altitude guide explains how to acclimatise on the way up.

When is Bum La closed?

• After heavy snow, most often from December to February. It can close for a day or a week.
• For Army reasons, such as border meetings or exercises, often at short notice.
• After landslides in the monsoon.

Keep a spare day in Tawang. If Bum La is shut, the same taxi can usually do Madhuri Lake, the war memorial or the road towards Mago and Gongkar La instead.

What to carry

• Your ILP printout, original photo ID and copies.
• Down jacket, gloves, cap and warm socks, even in summer.
• Water, snacks and any personal medicines. There are few shops after the Y-Junction.
• Cash. Phone signal is patchy past Tawang, so UPI may not work.
• Sunglasses and sunscreen. The light is harsh on snow.