Edited sentence: After them actors such as Dileep,  Kunchacko Boban and Prithviraj are considered to be the stars.Some lead actors are considered as superstars as they are able to attract huge audience for their films.Some of the lead actors like Suresh Gopi and Jayaram lost their ranks as most of their movies are failed at the box office.They are commonly referred as 'Big Ms' by the viewers and have been enjoying their stardom for over three decades.While Mammootty became a star in the early 80s, mid 80s saw Mohanlal as a leading star.While Prem Nazeer and Sathyan(actor) were the old superstars during the 60s, Mammootty and Mohanlal are the prominent superstars of the industry and have the maximum popularity among the viewers