Actress Shweta Menon, who predominantly works in Malayalam filmdom, says she is in search of substantial roles in order to be more active in Tamil cinema.Her latest Tamil film "Inayathalam" released on Friday."I'm always on the lookout for great roles, irrespective of the language or industry. I would love to do more Tamil films; unfortunately, I don't come across any substantial roles. 'Inayathalam' offered me just the kind of role I was looking for and I jumped at it," Shweta told IANS.In the film, she plays an investigative officer and works closely with cyber crime division."Thanks to my directors Shankar and Suresh, their in-depth research on my character was more than enough to understand and essay it. I like roles that challenge me and push me out of my comfort zone. This character was definitely enriching," she said.