Officials said the fire on Feb 12, caused by short circuit, engulfed a portion of luxury hotel Asia soon after Udhas' performance past midnight. The singer and his troupe were evacuated to another hotel.
Three people were injured in a stampede as fire officials fought the flames for half an hour.
Officials said Udhas had arrived Feb 11 to visit the Vaishno Devi shrine near here on his wedding anniversary. His concert the next day attracted a huge crowd.