The truth is a lot of links to sell and buy btc can get in the search engine.
Ia
Try link above this links buy
https://www.alfacashier.com/buy/bitcoin?gclid=Cj0KEQjwv_fKBRCG8a3ao-OQuZ8BEiQAvpHp6CVHsBW5Ahn03LolklqIa8SEURsDPjHEiPy_uIrQFbEaAtzp8P8HAQ

https://localbitcoins.com/country/NP
http://www.bitcoin-net.com/How-to-buy-Bitcoin-in-Nepal.php#.WV8l3iExXqA

And any more

Good luck