Sumit is currently seen on the Anil Kapoor-starrer, which had its premiere last weekend on Colors.
The actor, who has earlier played substantial roles on "Laagi Tujhse Lagan" and "Chakravartin Ashoka Samrat", says he always felt the colour of his eyes was a role repeller as it makes him look non-Indian but "24" director Rensil D'Souza felt otherwise.
The young actor says his is one of the most interesting characters on the show.
"There is so much mystery around my character. You won't get to know till the eighth or ninth episode if he is good or bad. Somehow, I get roles, which are layered and mysterious."
Working on "24" is nothing less than a wish come true for Sumit as he had been wanting to re-team up with Rensil after shooting an advertisement with him.
"The next thing I know, I got a call for '24' from the same casting team, which was involved with the ad shoot."
Sumit says another highlight of being a part of the second season for him was getting to spend time with Anil. The "Haider" star did not have many scenes with the veteran but he got many career tips from the actor-producer.
There is a lot of buzz around '24' second season as the first season, which aired in 2013, was a success on small screen.
Sumit says the new instalment has more focus on inter-personal relationships than the first one so that it connects to larger TV-viewing audience.