Four persons sustained burn injuries after a large gas-filled balloon exploded at the premises of the Brahma Kumaris centre in Gachibowli on Friday morning.According to the police, the incident was reported at 11 a.m. when workers noticed a large gas balloon that drifted into the compound. While they were attempting to hold the balloon, it suddenly exploded, leaving four persons injured.Published - March 06, 2026 06:56 pm IST