The incident took place this morning in an open field in Hindon Vihar locality when three gas welders, engaged by a scrap dealer, tried to cut open the tank.
When the welders were opening the cover, the tank exploded, killing one of them -- identified as Subrat -- on the spot. A woman, Noor Jahan, who was cutting grass in a field near by succumbed to her injuries en route the hospital.
Two other women, Zarina and Shaheen, who were injured in the blast, were rushed to a hospital where their condition was stated to be critical, SP City Shivshankar Yadav said.
Investigations are on and the people responsible for it will be punished, Yadav said.
