Passport Office Delhi — Passport not received - RPO

It is been 1 year almost (application date:15.03.2021) since i have applied for passport. The process of verification has been done successfully. The status is showing as "Passport application is under review at Regional Passport office". My File number is DL01C[protected]. I had also raised the complaint on Passport portal, they were saying that passport is received undelivered and take online appointment before visiting RPO but i am not able to take any online appointment and RPO is also not picking up the call.

Would request you to kindly look after this and resolve it asap.

Regards,
Bhavya Mehra