Hirani, known for feel-good, comedy films that have grossed record numbers at the Indian box-office, was named in a Huffington Post India story on Sunday.
In a statement late on Sunday, Hirani denied all allegations.
"I want to very strongly state that this is a false, malicious and mischievous story being spread with the sole intention of destroying my reputation," Hirani said in a statement sent to journalists by his publicist.
Reuters was unable to reach him directly for further comment through text messages and phone calls. The identity of the woman could not be immediately ascertained.
He is the most high-profile Bollywood figure to face allegations since India's #MeToo movement gathered pace online last September, leading to a series of accusations by women of sexual harassment or assault against actors, entertainers, editors and politicians, among others. (Reporting by Shilpa Jamkhandikar Edited by Martin Howell and Darren Schuettler)
(This story has not been edited by Devdiscourse staff and is auto-generated from a syndicated feed.)