Currently, he is serving as an MLA from Bhangar constituency in the West Bengal Legislative Assembly as a candidate of Rashtriya Secular Majlis Party.
He is Great grandson of the Pir of Furfura's Mohammad Abu Bakr Siddique.
He is the fourth generation of the founder of Furfura Sharif Mohammad Abu Bakr Siddique.
Nawsad's elder brother Abbas Siddiqui is the founder of the Indian Secular Front.
[2] On 21 January 2021, Abbas Siddiqui founded a new political party called the Indian Secular Front and appointed his younger brother Nawsad as its chairman.