Is it OK if I board a train one station before the booked station?

Is it OK if I board a train one station before the booked station? Passenger who has booked online tickets via IRCTC can change his boarding station online before 24 hours of the scheduled departure of the train. In case a passenger has changed the boarding point he will lose all the rights to board the train from the original boarding point.

Passenger who has booked online tickets via IRCTC can change his boarding station online before 24 hours of the scheduled departure of the train. In case a passenger has changed the boarding point he will lose all the rights to board the train from the original boarding point.