Short answer
Indian visitors generally need Protected Area Permits for Tsomgo Lake, Nathu La and North Sikkim, usually arranged through registered operators. Foreign nationals need additional permits and are excluded from some places. The NH-10 road to Gangtok is prone to landslides. Rules and road status change often, so confirm close to your dates.
On this page 14 sections
- Entry to Sikkim
- Protected Area Permits for Indian visitors
- Rules for foreign nationals
- North Sikkim access
- Local taxi rules
- NH-10: the Siliguri to Gangtok road
- Roads in Darjeeling and Kalimpong
- Strikes and local situation
- Planning with buffers
- Documents to carry
- Online systems and apps
- If a permit is refused or cancelled
- Photography and conduct
- Plan with us
Sikkim is a border state with sensitive areas, and it has a permit system that differs for Indian and foreign visitors. Its roads are steep and exposed. Both change often, and advice found online can be out of date. This guide explains how things generally work, what has changed recently and how to plan.
Entry to Sikkim
Indian citizens generally do not need a permit to enter Sikkim itself, but carry government photo ID for hotels and checkposts. Foreign nationals have needed a Restricted Area Permit (sometimes called an Inner Line Permit) to enter the state, valid for a period of days and extendable. Rules, fees and processes have changed several times, including a move towards online clearance. Always check the latest position before you travel.
Protected Area Permits for Indian visitors
Several areas of Sikkim are inside the Protected Area regime, because of their closeness to the border. Indian visitors generally need a Protected Area Permit for:
- Tsomgo (Changu) Lake, usually valid for the day.
- Nathu La, with daily quotas and days of the week when it is open, typically excluding two days.
- North Sikkim, including Lachen, Lachung, Yumthang, Zero Point and Gurudongmar Lake, with limits on the number of days you can stay.
Permits are normally arranged through registered travel agents or the tourism department, and require photographs, ID and travel details. Travel to North Sikkim usually requires a registered operator. The system has been moving towards online, QR-coded permits.
Rules for foreign nationals
Foreign nationals face stricter limits. Reports and guides indicate that Nathu La and Gurudongmar are closed to them, and that other places such as Tsomgo and Yumthang may be open only with online permits and in certain conditions. These rules have changed more than once, and we have seen conflicting information. We confirm the current position with the authorities before quoting, and we offer alternatives where a place is not available.
North Sikkim access
North Sikkim was hit hard by a glacial lake outburst flood on the Teesta river in October 2023, which damaged roads, bridges and a hydropower dam. Permits for Lachen and Gurudongmar were paused and later resumed in phases. Landslides in later years also stranded visitors. Access in any given season depends on road repairs, weather and official clearance. We check before you travel, and we offer Pelling, Tsomgo or Kalimpong as alternatives.
Local taxi rules
Taxis in Gangtok, Lachen and Lachung operate under local unions with fixed rates and rules. Vehicles from Siliguri may not be allowed to take tourists to certain places, so you change to a local vehicle for Tsomgo, Nathu La and North Sikkim. This is normal, and a good operator arranges it. Drivers are experienced on these roads and know the weather.
NH-10: the Siliguri to Gangtok road
The main road from the plains to Sikkim, NH-10, follows the Teesta river through steep, unstable slopes. Sections between Sevoke and Rangpo, including areas known as 27th Mile and 29th Mile, are prone to landslides, subsidence and rockfall. In recent years, the road has been closed for hours, days and sometimes longer for repairs. Improvements, including a project to upgrade the Rangpo-Ranipool section, are planned or under way, but disruptions continue. Always keep buffer time around the road.
Roads in Darjeeling and Kalimpong
The roads between Siliguri, Kurseong, Darjeeling and Kalimpong also suffer from slips in the rains. Hill Cart Road and other routes may be blocked for short periods. Traffic jams at Ghum and Darjeeling are common in peak season. Shared jeeps are cheap but crowded.
Strikes and local situation
Darjeeling has seen political strikes (bandhs) in the past that disrupted tourism. Such events can close shops, restaurants and roads. We monitor the local situation and tell you plainly if anything affects your trip.
Planning with buffers
Keep your first and last days flexible. Avoid same-day flights or trains after long hill drives. Start early, since afternoon rain and traffic make travel slower. Keep a spare day in the middle, particularly if North Sikkim is on the plan. Accept that plans change, and that safety comes first.
Documents to carry
- Original government photo ID.
- Several passport-sized photographs.
- Copies of permits and booking confirmations.
- For foreign nationals: passport, visa and permit receipts.
- Cash, since ATMs are few in remote areas.
Online systems and apps
The authorities have been moving permits online, with QR-coded passes in some categories. Systems change, and websites and apps may be updated or replaced. Because of this, rely on current official sources and a trusted operator rather than on old blog posts. Keep digital and printed copies of every permit, and check that names and dates match your ID exactly.
If a permit is refused or cancelled
Permits can be refused because of daily quotas, security concerns, weather or paperwork errors. A permit already issued can be cancelled at short notice. If this happens, we offer alternatives: a different lake or valley, a monastery day, Pelling or Kalimpong, or a longer stay in a hotel with views. We also tell you what refunds or credits apply. This is why we plan Sikkim trips with a Plan B built in.
Photography and conduct
Do not photograph military installations, bridges and border areas. Follow signs and instructions from soldiers and police. Do not carry drones without permission. Respect local customs.
Plan with us
Our team confirms the current rules and plans routes with buffers. Read the altitude and monsoon guide, then send us your dates or explore our Darjeeling and Sikkim tour packages.
Practical tips
- Confirm permit rules close to your dates, using official sources or a trusted operator.
- Carry original ID and several photographs for permits.
- Keep a spare day in your plan for road closures.
- Do not schedule onward flights on the same day as a long hill drive.
- Ask about local taxi rules at Tsomgo, Nathu La and North Sikkim.





