[10] He went to Shree Chandulal Nanavati Vinay Mandir and completed his bachelor's degree from St. Xavier's College, Mumbai.

[11] In 2011, Mannan started his career as a singer with Vipul Amrutlal Shah's Kucch Luv Jaisaa and lent his voice for two songs, Thoda Sa Pyaar and Baadlon Pe Paon.

[8] In 2013, he debuted in Bollywood as music composer with Commando: A One Man Army.

[8] Later, Mannan composed music for films such as Commando 2: The Black Money Trail (2017) and Namaste England (2018).

[12] Shaah has composed the hit song Tere Dil Mein from Commando 2: The Black Money Trail, sung by Armaan Malik, was well received by audience.