My dear this is only applicable when Boarding Point has not been changed..
But if he gets his boarding point changed prior , then there is not at all problem..
As in this Case, @annusinghirctc please get the Prinout of E ticket and original I'd card , simply write a letter to change Boarding point due to any circumstances you are facing, visit the PRS counter , get it changed.. Or else visit Reservation Supervisor at Station.