Soha, 37, who is the daughter of veteran Bollywood actress Sharmila Tagore, said beauty still plays an important role.
"Beauty is very important in Bollywood because you are casting somebody in a particular role. There are romantic films where a hero has to be attracted to the actress.
"So, she has to be beautiful. But the concept of beauty is changing in the industry. Things which were not considered beautiful earlier, now have become a mainstream. They are embracing different definitions of being beautiful," Soha told PTI on the sidelines of "Women In The World" summit.
"I am not apprehensive at all. If you see my filmography, I have mostly done non-glamorous roles. The one where I really had to do something substantial with my look was 'Khoya Khoya Chand', where I played an actress of 1950s. I am open to trying out new looks," she said.
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Having tied the knot with actor Kunal Khemmu, Soha said marriage has not changed her thinking towards her career in any way.
"I don't think anything changes after marriage. Things change in a big way after becoming a mother. Kunal and I have known each other for a very long time. We both are actors."
The actress will be next seen in "October 31" and "Ghayal Once Again".