Magar was conceived in Nawalparasi,Panchanagar 2,Nepal. Magar was chosen by the All Nepal Football Association to join one of there institutes in Butwal however after his execution for Elite Boarding School in the Subroto Cup which was held in New Delhi, India in which they won the competition and the 2012 AFC U-14 Football Festival he was chosen to join the Central ANFA Academy.
Magar made his name for himself amid the AFC U-14 Football Festival in 2012 for Nepal's under-14 football group. After his execution under-14 mentor, Sunil Shrestha, said "Bimal is one of the brightest prospects in Nepalese football".
Magar made his global introduction for Nepal's senior group on 20 September 2012 against Bangladesh at the Dasarath Rangasala Stadium in a worldwide benevolent in which he turned into the most youthful player ever to speak to the Nepal senior national group at 15 years old years and two days old. Nepal national group mentor, Krishna Thapa, said "He is an exceptionally young man. He played well in the principal match. I can't request more from him in the principal global match".
He is the most youthful player to play on SAFF diversion and he scored his first objective against Pakistan on the damage time. Nepal Head Coach, Jack Stefanowski said "A 16 year kid got to be saint of Nepal, he's no more a child, he is a genuine Hero, he is our Neymar".