There is nothing as scholarship for piloting . You'll have to pay money to learn and fly . I am not sure , who advised you of scholarship in this field, it was wrong information . . Its all about the money my freind .
In early 70's they got scholarship ( i think 3 yr's ) but after that government withdrew it . I have not heard of anyone from 80's getting a scholarship for this field . If there is anyone , that would be news for me .
The other option would be join Nepalese Army , and then they do send you for training at their cost . But then you'll have to pull a lot of strings for that to happen . Until unless your family knows someone in Palace , or the CNC or 11 bahini , its gonna be really really tuff . There are bigger sharks waiting for that oppurtunity .

Best of luck on your quest . Its a fun job but a dangerous one .Keep the sky safe .