LUCKNOW, July 4 -- A fire at a restaurant operating inside a petrol pump complex opposite Jagrani Hospital in Lucknow's Vikas Nagar area triggered a large-scale firefighting operation on Friday. No casualties were reported. The blaze broke out at 'Punjabi Flavours Food Hub', located on the petrol pump premises. Preliminary findings says, the fire was preceded by what appeared to be an explosion, following which flames rapidly spread through the outlet. Two fire tenders were rushed to the spot and began efforts to contain the blaze. An SDRF team also reached the location to assist in rescue and safety operations as a precaution. Ankush Mittal, CFO, Lucknow, said "We were informed that the blaze had broken out adjacent to a petrol pump. Firefighting operations were launched promptly, and the fire was brought under control. No casualties were reported." Officials are yet to ascertain the cause of the fire. While preliminary accounts from local residents suggest that an AC compressor explosion may have triggered the blaze, the cause will be confirmed only after an official investigation....