ke ho sunita ji tapai pani khattri ma pani khatri. that means tapai pani bahun bata down bhara chettri bhako. Well u certainly can use the triple band. There is no roaming serivce in nepal though. I think u can buy kind of pre paid sim card now. It is like buying a tempory connection at the cost of 15 thousand but tell u what we dont need mobile. If u are going for business other wise no need. if u want to show off then nothing to say