Winter drives in Arunachal Pradesh require preparation for cold temperatures, snow, ice, fog and unexpected delays. Pack warm layers for everyone travelling, including thermal wear, insulated jackets, gloves, woollen caps and thick socks. Keep an extra layer accessible inside the vehicle rather than packed away in the luggage.
Carry water, snacks, personal medicines, a basic first-aid kit, identification documents, required permits and some cash. A fully charged phone and power bank are useful because mobile connectivity can vary along remote mountain routes.
Check the vehicle before starting a long journey. Pay attention to tyre condition, brakes, battery, lights, windscreen wipers and the heating system. A vehicle with suitable ground clearance and good tyre grip is particularly useful on mountain roads affected by frost, snow or ice.
Plan to travel during daylight where possible and avoid rushing through unfamiliar mountain sections after dark. Maintain a safe speed, leave extra stopping distance on slippery surfaces and follow local instructions when roads are narrowed or partially covered with snow.
Before leaving for higher areas such as Sela or Bum La, check the latest weather and road conditions. Do not assume that a road accessible earlier in the day will remain equally easy after fresh snowfall. Fog, blowing snow and ice can reduce visibility and traction with little warning.
If travelling with children or older passengers, keep blankets, warm clothing, food and water within easy reach. Plan regular breaks on long journeys, but choose safe stopping areas away from steep slopes, falling rocks and exposed roadside edges.
Finally, build spare time into the itinerary. Snowfall-related delays or temporary road restrictions can affect travel plans, so avoid scheduling tight connections immediately after a mountain drive. If conditions become unsafe, postponing the journey is safer than trying to maintain a fixed schedule.