In the aftermath of the Mumbai CST bridge collapse, senior police officials said they are gathering documents that will help them build a strong case against the MCGM officials and private contractors responsible for the tragedy.

"While we have applied IPC sections in the FIR, they are bailable. So, even if we make direct arrests at this stage, chances are they will get off the hook easily," said an official, adding, "We could either follow what the BMC is stating in their report and arrest the people mentioned. The second option is to independently collect as many documents and evidence possible and invoke section 304 part two - culpable homicide not amounting to murder - in the FIR."