Here are the most popular ways to recharge your ncell sim card.
1. Recharge Card
This is the most popular ways till now in Nepal, you can find recharge cards almost in every village and town in Nepal
Just Scratch the pin number in the scratch card and top up through ussd or sms
you can dial *102*Pin number# and call
This is Virtual Fund transfer.
This is pin less transfer service, this is available in Ncell authorised Ncell center, ncell shop, and pos
3. Online Top Up
Now online top up is in the rise, just need to provide the number and different shop will recharge your number using e banking, and e wallet.
if you have any e wallet account of Nepal you can do it your self.