"Shoojit Sir wanted raw emotions, hence there were no workshops held for us. This helped us to explore ourselves and bring out our emotions in the most natural manner," Banita said in a statement.
'October' TRAILER OUT! Varun Dhawan & Banita Sandhu's 'beyond a love story' will leave you with a heavy heart!
"I could not have asked for a better debut than 'October'. Having worked with him in an ad before, Shoojit Sir is par excellence," she added.
Her co-star Varun Dhawan, known for films like "Judwaa 2" and "Badlapur", called Sircar a "genius".
"His style of working has not only made me grow as an actor but also changed me personally as a human being. My brief was simple, I had to play myself onscreen. I was amazed to see my own performance in the film and it wouldn't have been possible without him," said the son of filmmaker David Dhawan.
"October" is set to release on April 13.