Alamgir Khan was born in Lalauda village in Nabha city in Patiala district, Punjab. He belongs to a family of traditional folk and classical singers committed to Patiala Gharana and settled in Lalauda village. He started training in classical singing at the age of 14 with his father Ustad Murli Khan, grandfather Ustad Idu Sharif Khan and great grandfather Ustad Karamdeen Khan.

He got his first break in the Bollywood films from the music director Himesh Reshammiya. After listening to his voice, Himesh Reshammiya signed him to sing the song 'Desi Beats' in Salman Khan Starrer 'Bodyguard' released in 2011.

He spent his formative years as an artist in Kalagram residence in Chandigarh. He has also received guidance from the musical maestro and Bollywood playback singer Sukhwinder Singh; Yashwinder Sharma, Programme Officer, North Zone Cultural Centre (NZCC), Kalagram; and standup comedian Khayali Saharan.