E filling

Aperson submits a return in aphysical form and  then wants to submit  a revised return by efilng.

The  efiling form utility is  downloaded  does not recognise  the ack no of the  origionol return submitted physicaly and  suggestes that it is to be filed as originol return itself.

When contacted at the  CPC bangalore  it was informed that if the  same is accepted it may be filed.

The  return is efiled  with revised figures

What is the correct procedure and implication?