"It has to be a good script with a tight screenplay. The production house needs to be good too. It is as important as your role in the film," Kajol told PTI here.
Daughter of actress Tanuja and film director Shomu Mukherjee, Kajol made her acting debut with Bekhudi in 1992 while she was in school.
The 38-year-old actress is known for her memorable performances in films like Dilwale Dulhania Le Jayenge, Gupt, Dushman, Kuch Kuch Hota Hai, Fanaa, My Name Is Khan, among others.
After getting married to actor Ajay Devgn, she took a sabbatical from full-time acting in 2001 and returned to films with the 2006 romantic thriller Fanaa. After that she appeared in films in cameo appearances. She was last seen in a prominent role in Karan Johar's home production We Are Family (2010).
When she is not doing movies, Kajol said her two children- daughter Nysa and son Yug-- and husband's production house keep her busy.
"Looking after babies is a full-time job. But spending time with my kids gives me a great amount of personal satisfaction and I am enjoying each and every moment of this amazing experience that god has gifted me with," Kajol said.
"We also have a production house-- Ajay Devgn Films. I am not involved in it 24x7. But yes, I like overseeing everything," she said.
Her pairing with superstar Shah Rukh Khan had been a highlight of her career, as they delivered a number of romantic hits like Dilwale Dulhania Le Jayenge, Kuch Kuch Hota Hai, Kabhi Khushi Kabhi Gham, among others.
"I think it is got to do with the movies we have made together. They have all done well. There is a cinematic history that has contributed to the overall persona of us as a pair. We share a good comfort level and are also good friends," she said.