Essentials before you go.

Where permits matter and why you should not assume eligibility.

Treat permits as route constraints, not just paperwork. East and northbound sectors can change by weather, route control, and traveler category.

When shared makes sense and when private cabs are worth it.

Shared works best for simple intercity links and solo budgets. Reserved cabs win on flexibility, family travel, luggage, and time-sensitive itineraries.

Layering beats guessing in the hills.

Even when Gangtok feels comfortable, higher routes can shift sharply. Pack layered warmth, rain protection, and medication basics.