We are a group of friends from Thailand. Planning to travel to Nepal on Motorcycle. We have already been Mustang with Hiring a bike in Kathmandu, Nepal several times. Now we are planning to take our own bike from Thailand to Nepal.

Here is our route: Thailand, Burma, India, Nepal and go to Tibet and back to Thailand
Is it possible via this route or we have to take another route? We knew we need to issue Canet de Passage document for this but unable to get information what kind of process we need to follow for this?
Any kind of information is helpful to us. We are making this trip maybe next year!

Thank you,