Sujoy Ghosh's Kahaani, starring Vidya Balan in the lead is getting rave reviews from people across the globe.

However, what one might not know is the fact that the Kahaani director rose to such a height from a humble beginning.

Sujoy, who has directed movies such as Jhankaar Beats, Home Delivery: Aapko... Ghar Tak and Aladin had to work very hard to attain the kind of success he has attained today.

He said he knew it was a huge struggle ahead; as he was hoping that ‘Aladin' would be a hit and lessen his struggle, but it turned flop and only added to his grief.

Explaining his take on such situation to ETC Bollywood Business, Sujoy said, "If your last film isn't a hit, then no one wants to put money on your next film, unless it's bankable. But if you want to marry a woman, you will do it, irrespective of what people tell you. So if you want to tell a story, you will, no matter what."

Talking about his movie, Sujoy said, "This picture is everything against the rule book. The movie happened because of two things.

"One, I really wanted to work with Vidya Balan. Actually, Pehle Vidya aayi, phir Kahaani aayi. I really wanted to work with Vidya Balan. It was just gut -- I wanted to work with her from the moment I saw her. We decided to do ‘Kahaani' when she was shooting for ‘Ishqiya.

"The second thing is that I have always been fascinated with the change that happens to a woman when she becomes a mother. I have found that the same girl, who doesn't know anything, will teach herself everything to protect her family and child.

"And I wanted to explore that strength and see what would happen if you placed a to-be mother in an alien environment where she doesn't know anything -- the place, the language, the people."

‘Ekla Cholo Re', a masterpiece from one of India's greatest poet/writer Rabindranath Tagore, and sung by Bollywood superstar ‘Amitabh Bachchan' for ‘Kahaani'.

Sharing his experience about it, Sujoy said, "I needed a voice who people would listen to. Sir (Amitabh Bachchan) knew how desperately I wanted him to sing the song and he agreed instantly. Very few would know that Sir is a great musician and he plays piano superbly. But apart from all his talents he is a superb human being."

Adding to the conversation, Sujoy said, "Rekhaji ne mujhe call kiya tha, main toh behosh hone wala tha...My knees were like tak tak tak....I am a big fan of her."