He wrote several Hindi songs for films, including "Teri Mitti", "Galliyan", "Tere Sang Yaara", "Kaun Tujhe", "Dil Meri Na Sune", "Kaise Hua" and "Phir Bhi Tumko Chaahunga".

Shukla was born on 27 February 1976 into a Brahmin family in Gauriganj, Amethi, Uttar Pradesh, India, where he attended a HAL School Korwa[clarification needed].

[2][3] After graduating from Allahabad University in 1999, he moved to Mumbai to seek work, and subsequently entered the TV and film scene following an opportunity to write for Kaun Banega Crorepati.

[4][5][6] Muntashir has written the lyrics of several Hindi film songs including "Galliyan" from Ek Villain,[7] "Tere Sang Yaara" from Rustom,[8] "Kaun Tujhe" from M.S Dhoni: The Untold Story[9] and "Dil Meri Na Sune" from the film Genius.

His lyrics to "Phir Bhi Tumko Chaahunga" (2017), a song which registered more than four million views through unofficial versions prior to its official release, were originally compiled for his wife in 2001.