Mumbai: With films such as "Munna Bhai
MBBS", "Lage Raho Munnabhai, "3 Idiots" and "PK" to his
credit, Rajkumar Hirani is one of the most sought-after
directors in Bollywood, but the filmmaker believes there is no
formula for success in movies.
The National Award-winning director says, for him, no
film can be charted under the category of bad cinema and he
believes only hard work can help one improve.