Irctc — removal of coach and theft

My friend had booked a 2tier AC ticket through e-ticket in the train name Kongu express (from Nizamudin to Coimbatore today at 8.40 am) and when he and boarded into the train he came to know that 2tier AC has been removed in it and so he was talking to the TTR regariding the same and for the refund as he was given a 3tier seat only by then his Lap top, passport and his bag got stolen.

please do the needful and know what further i need to do and the same.