In the film, Taapsee is paired with Amit Sadh of "Kai Po Che!" fame, who recommended her name to the filmmaker.
"There were little doubts in my mind, but I think Amit (Sadh) was quite clear and he told me about Taapsee. When I met Taapsee, all my doubts were gone and I thought Taapsee was absolutely bang on as a cast," Sircar said in an interview.
Based in Amritsar, Punjab, "Running Shaadi.com" is a youth romantic comedy centred around the website that helps people elope and get married.
"She herself is a Sardarni from Punjab and she speaks fluent Punjabi. Her nuances are very clear. She is a very good actress and very spontaneous. She is looking very fabulous. I am quite happy with the pair," said Sircar.
"Amit Sadh is a very good actor. I have seen him in 'Kai Po Che!', he is one film old. For me, this is a fresh cast absolutely. Together, they have rehearsed for almost two-three months. They kept on rehearsing," Sircar said.
"They were very good together and became good friends also," he added.