Why don't many tourists visit pokhara?

Answer 1

It sounds as if you live in Nepal. I have been there 4 times, and hope to return many times. One of the biggest reasons people may not visit is that they are afraid to visit, with all the political unrest and danger. It may also be that they don't really know much about Nepal and need to learn. Another thing may be the cost and time it takes to travel there.

Answer 2

Tourists usually visit places and areas because of either some famous landmark (Disneyland in Paris for example) or because it has a natural landmark (for example Ayres Rock in Australia)

Perhaps that part of Nepal doesn't have anything of substantial interest to tourists.