A 28-year-old concert-goer in Mumbai's Worli succumbed to a medical emergency, while a 31-year-old woman fell ill during the same event.
The deceased was rushed to Breach Candy hospital, where he was declared dead, while the woman was taken to Jaslok Hospital for treatment.
Mumbai Police are examining CCTV footage and electronic devices to determine the cause of the incidents.
Initial investigations revealed no evidence of drug use, but the woman had consumed alcohol and energy drinks.
This incident comes months after two college students died at a concert in Mumbai, where they had consumed the party drug 'ecstasy'.
