Paytm Mobile Solutions — Not accepting a return request of Defective product

Address:	Gautam Buddh Nagar, Uttar Pradesh, 201301
Website:	www.paytm.com

I have order Nikon D5200 Dslr camera worth 38 thousand from paytm on 12-MArch-2017 and deleiverd on 16-march-2017.
The product was defective as charger was faulty and battery given was alerady used.
i have raised a return request to paytm and they ask for the photographes of product and i send to them.
after some day i got a mail saying "your product is covered under manufacturer warranty of 1 year. I recommend that you visit the nearest service center in order to avail this"
As i reached out to service center they said they do not provide warranty for accessories like battery and charger.
however i asked what is problem they said the charger is defective and battery is already used.
i said to paytm care but again they said the same thing to go to service center.
i have raised the request before the time limit now they are saying the request days are over and not taking back the product.

Please find the details of order
Order no : [protected]
Invoice No: 69296/2016-17/1639
product: Nikon D5200 (with AF-S 18-55 mm VR Kit + 55-200 mm VR II Lens) 24.1 MP DSLR Camera (Black) + FREE Nikon DSLR Bag + 8GB Memory Card
Please help me on this as amount is very much and i got a defective product which are not even service center guys replacing as their policy says and this paytm guys are playing Mail and mail not even providing a contact details of seller or their self.