In Andhra Pradesh, eighteen workers have been injured, five of them seriously, in a major fire that broke out in the Nagarjuna Agrichem Limited (NAL) plant in Srikakulam.The fire reportedly following a blast on Saturday. Five fire tenders were rushed to spot to douse the fire.Police said, according to initial reports there was a cylinder blast which triggered the blaze. About 200 workers were present at the time of the accident.