New Delhi, July 28 - Designs of the Delhi Metro will be checked twice before being adopted from now on, its chief E. Sreedharan said Tuesday after a probe panel faulted the design and construction material for an accident that killed six people July 12.

At a press conference in the capital, Sreedharan said among the side measures taken by the Delhi Metro Rail Corporation (DMRC) to avoid any such accidents in future will be a design double-check by an independent design office.

'The DMRC has decided not to depend entirely on its design office when it comes to the designs. General consultants or an independent design office will check the designs first and then pass it on to the (DMRC) design office. So there will be a double check,' Sreedharan said.

DMRC has also taken steps to revitalise the tool box safety drill to all workers and start a crash course for three days in safety rules and regulations for every worker at the construction site.