Yes, permits are required, but the type of permit depends on your nationality. But if you are planning a North East India motorcycle tour package that includes Arunachal Pradesh or Nagaland, understanding the permit process is essential before you ride.
What Is Required for Arunachal Pradesh...
arunachal pradesh permit for foreigners
inner line permit indianortheastindiamotorcycletourpackagenortheast india bike trip
protected area permit arunachal