In a way rearview mirror can be helpful for the "pilots" to see the train during curves, spot signals from the guards and notice any unusual happenning like derailments etc.

Thanks Neil, just imagine what will happen if Mumbai motormen started doing this!!!

Amol....In many western countries, the driver verifies if there are passengers boarding/alighting from trains before leaving a station. Hence the need for a rear-view mirror.

Whats the need of rear view mirrors on the Locomotive?

This is not a diesel ! The loco is only standing on an unelectrified line. You can see the folden pantos on the roof.

the only difference i see that it is diesel powered.