The film, which marks Aishwarya's return to the big screen after a gap of five years, is directed by Sanjay Gupta.
A crime scene features as the backdrop of the poster, where Aishwarya and Irrfan, 48, are shown on the run, with a big clock behind them.
The director shared the new poster today and captioned it, "Here is the poster of our labor of love & passion #JAZBAA. Now waiting for your response."
Sanjay also pointed out that the lead actress' debut Bollywood film "Aur Pyaar Ho Gaya" also released on the same day in 1997.
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He was all praise for his lead actors.
"At the cost of being immodest, I can easily say that both @irrfan_k and ARB on our #JAZBAA poster are a treat for sore eyes."
Filmmaker and Aishwarya's close friend Karan Johar also shared the poster. "Aishwarya is back!!! #Jazbaa," he tweeted.
The 41-year-old actress was last seen in Sanjay Leela Bhansali's drama "Guzaarish" (2010).
"Jazbaa", also starring Shabana Azmi, Jackie Shroff, Atul Kulkarni, Abhimanyu Singh and Chandan Roy Sanyal, will hit theatres on October 9.