Soha was terrified of acting with mom Sharmila

"Soha found the part quite daunting after Sharmila went to rehearse her scenes with Soha. The first scene between them was a difficult and long one. Soha admitted later she was terrified of her mother," the film`s director-producer Sangeeta Datta said.

Bringing the real-life mother-daughter duo together for the first time on the silver screen, the English language film about a Bengali diaspora family has 64-year-old veteran actress Sharmila playing mother to Soha.

"I think the real mother-daughter relationship made it very difficult for Soha, because the film deals with the mother`s death. She had to explore very dark areas of her psyche for the role," Datta told media from London.

However, after a lot of takes and re-takes, 32-year-old Soha, best known for her role in Aamir Khan`s `Rang De Basanti`, managed to impress the UK-based director.

"But the scene worked out so well. Soha has given her best performance to date," she said praising the actress`s skills.

Sharmila and Soha had earlier rejected many offers to act together in Bollywood, but `Life Goes On` was chosen as the script brings them together in an organic way.