Desae, who will be seen in upcoming Hindi film "Yeh Faasley" releasing March 3, has featured in several commercials for products like Fair & Lovely, Titan Raga, iPill and Hero Honda, among others.
Acting came as a different ball game for her altogether, but she admits that working in both Hollywood and Bollywood was equally challenging.
"Shooting a film itself was a new experience for me, so it's difficult to say which was more fun or tasking for me, " Desae told.
About working with Dev, she said: "I can't say much about the character but Dev was very down to earth and has no airs of being the 'Slumdog Millionaire' hero, " she added.
Desae's journey to Hollywood started through a friend, who introduced her to the director. After a series of auditions, she was selected for the movie, which also features Judi Dench and Bill Nighy.
The decision to shift to the acting world was a tough one for the young girl.
"Acting is what I always wanted to do. But it took me a long time to arrive at this decision of taking acting as a career, " the actress said.
"I used to watch a lot of films and drama series and eventually realised that nothing moves me more than a film and thought acting is probably what I should do, " she added.
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She will also be seen in the comedy "Sharafat Gayi Tel Lene".
Desae is particularly excited about "Yeh Faasley" as she has a central role in it.
"You choose to do certain kind of films that bring out your potential as an actor, " she said.
"It will always be one of my biggest films ever, because it's completely my film. I am the protagonist. This is a type of film that I will get probably once or twice in my entire life, " she added.
Unlike many newcomers, it isn't just big budget romantic dramas on Desae's mind.
"I want to do some candyfloss films at some point but I want to do some valid commercial, meaningful films. Also, I don't think I will plan my career based on the budget of the film, " she added.