The actor, who has been an established star in Bollywood for 21 years, said that his longevity in films is a result of greater opportunities in India as a whole, NDTV reports.
"Because our country is progressing so fast, a lot of people like me, who perhaps don't even deserve it, get a lot more opportunities than what actors and stars got in years past," he said.
"I come from a lower middle class background and for the last 30 years, it has been my habit to work for 18-20 hours a day. Through my hard work I try to make the life of my family better."
The Don 2 star, who is the brand ambassador of Prayag Film City, was speaking at the inauguration of the first phase of the development in West Midnapore district.
Asked if he is drifting towards entrepreneurship from acting, the 46-year-old said that he considers himself just an actor.
"I am hardly an entrepreneur. I don't even think of myself as a star. I only try to make a difference in the world with my acting," he said.
Describing acting and sports as two of his passions, he added: "Whatever I do, promotions and other things, they are offshoots and ancillaries."
Khan was recently awarded the prestigious Chubb fellowship by Yale University in the US.