Kanchenjunga in March?

Can you do the Kanchenjunga basecamp trek in March?

Yes, but note that early to mid-March can still be extremely cold at higher altitudes in the Kanchenjunga region. If possible, I would recommend planning the trek as late in March as feasible for less harsh conditions. A shorter version (approximately 16 days in Nepal) takes you to the North Base Camp of Mount Kanchenjunga, while a more comprehensive 21-day itinerary allows you to visit both the North and South Base Camps.