The soon-to-begin film has superstar Amitabh Bachchan as father-in-law trying to find another husband for widowed daughter-in-law Rani.
A similar theme was played out almost 30 years ago in Ramesh Sippy's Sholay in which Sanjeev Kumar tried to marry off his widowed daughter-in-law Jaya Bhaduri with the silent stranger Amitabh Bachchan.
The 'forbidden' match never materialised.
For Babul, Ravi Chopra has decided to approach Bobby Deol after several top-notch actors, including Shah Rukh Khan and Akshay Kumar, reportedly refused the offer to play the second husband.
In terms of the script Amitabh Bachchan says: "Babul is even stronger than Baghban. It has a very strong social message."
The casting is a dream-come-true. Rani Mukherji steps into a role that was very persuasively offered to Kajol (she declined, apparently because she didn't find much scope for her character).
The film re-unites the Baghban pair of Amitabh Bachchan and Hema Malini with Salman Khan as the son who dies.
Abhishek Bachchan was considered for the role of replacement husband but that didn't work out. Firstly his date diary in 2005 is jam packed, and also because Abhishek as the second man in the widow's life was felt to look too pat.
Everyone on the team felt the senior Bachchan recommending junior for his widowed daughter-in-law was just not persuasive for the plot.