1) you have to in reply mention that you did not suppress any information that you had to travel abroad for family emergency
2) send an application through registered post to the RPO explaining why police submitted an adverse report.
If the RPO finds your reply satisfactory, your letter would be treated as a request to reinitiate the police verification process. You could track the status of your case online through your file number.
3) if you do not reply and make fresh application show cause notice would be issued by passport authorities for impounding of your passport