The speculation over the father of Bengali actress and Trinamool Congress MP Nusrat Jahan`s newborn son Yishaan J. Dasgupta has been put to rest by the infant`s birth certificate on the website of the Kolkata Municipal Corporation. Yishaan was born on August 26.

Nusrat has been dating Bengali actor Yash Dasgupta after her much-publicised estrangement with her husband Nikhil Jain. Speaking to the media recently, she referred to the talk about the father of her newborn child, and said: "I think that`s a vague question to ask and put a black spot on somebody`s character as a woman. The father knows who the father is and we are having a great parenthood moment together. Myself and Yash, we are having a good time."