Pakistani singer Zain who participated 2012 season of saregamapa zee tv died of heart attack.

the musician’s brother Sonu Ali told The Express Tribune.
Zain’s friends told Sonu, he went to the washroom and when he did not come out for a while, they started banging the door and calling his name. That’s when they barged in and found him lying unconscious on the floor.
courtesy Express tribune
https://tribune.com.pk/story/1463100/former-sa-re-ga-ma-pa-contestant-mysteriously-found-dead-sheikhupura/