they should seek a probe and take strict action against the organizers who allowed more audience inside auditorium more than sanctioned strength and they didn't even had proper ac condition singer had was experiencing difficulty singing inside auditorium without having better ventilation or basic air conditioning as they did charged more money from audience they didn't even had basic first aid items as singer was feeling exhausting and sweating still he sang the songs . he could have been saved if they would have better ventilation / better crowd management or they would have took him to hospital sooner .
p.s don't want people to get angry at others but its sad thing it did occur , they should very least see that similar incidents never happen again and authorities too conduct regular checks of these places.