The South Indian actress has most recently appeared in Bol Bachchan opposite Abhishek Bachchan.
Thottumkal told IANS: "I am satisfied with the work I have done till now. These are my initial years in Bollywood and I want to reach out to [the] maximum number of people, and only commercial films can help me achieve that.
"Creative satisfaction is important for me. Right now, I am looking for characters [that] can give me creative satisfaction within the commercial format."
Speaking about her latest role, Thottumkal said: "Playing Sania was not much of a challenging task for me. A lot of homework or research from my side was not needed. But I have to say that she is the most down to earth and grounded character in the film.
"I had nothing to fall back on. I only relied on what was written in the script. The basic idea is that it is inspired from Gol Maal, where the females did not have much to do."
Thottumkal has previously denied that she has been trying to leave behind her South Indian cinema roots.
However, she also admitted that she has begun to see herself as a Bollywood insider now.