"We have questioned the consultant (Fuel Management plant) of Tata Steel, A K Lahiri, in connection with the explosion that occurred on November 14 last on the company premises," said a senior official.
Awadesh Kumar Singh, Chief Inspector of Factories, said documents provided by the concerned company official to the investigating team in regards to the explosion was incomplete while some of them were irrelevant.
Singh said the probe wanted to record the statement of one employee, who was on duty in the control room of the concerned gas holder, but he was on leave.
The employee has been asked to present himself before the team tomorrow to record his statement, Singh said, adding that the investigation would be completed soon.