Uttar Pradesh Technical University — no return mobile in return period

Address:

Vill Post Garhiya Rangeen Distt. Shahjahanpur, Shahjahanpur, Uttar Pradesh, 242303

Sir my name is Dileep Kumar I purchase a mobile from Amazon India it gave us 10 day return/replace garenty on 20th July my order delivered to me but there is a big problem in mobile it's camera is to bad I also talked to Amazon technical assistance he also found problem in camera then I say to return mobile he says to me there no return policy of mobile so please help me
My Amazon registered mobile number is [protected]
Mobile still in return period