Police verification

You have not mentioned if the police verification was done or not.

Did the police visit your house or intimated you to visit police station.

If it's not done then the police may give an adverse report on you, in that case the passport authorities may issue a show cause notice to you.

Hence confirm this.

That is actually system generated email always just a formality and can be either repetition or late delivered and many don’ even receive it.

The passport cannot be issued until the Police Verification is done, and that is done upon reporting to PS by the PP office. You have no role in that.

You have already the Passport and you travelled on that means that is activated and very much active in system. Just forget about the email that is not even required to be replied.    You have nothing to do in that

Yes the verification was not done.

If the verification was not done, then on receipt of notice you may have to cooperate with the police to enable them to carry out the verification and submit their report to the passport authorities