13MP primary camera with flash, 1080p video recording and
8MP front facing camera
5.5-inch (13.97 centimeters) 720p HD corning gorilla glass 3
capacitive touchscreen
Android operating system with 1.5GHz Qualcomm Snapdragon
410 quad core processor, 1GB RAM, 16GB internal memory
expandable up to 128GB and dual nano SIM (GSM+GSM)
2600mAH lithium-ion battery

http://www.ebay.in/itm/HTC-Desire-820-Q-DS-Quadcore-White-/271973410516

Price Comparison:
Snapdeal (Rs. 25190) –
http://www.snapdeal.com/product/htc-desire-820q-dual-sim/164454901

Paytm (Rs. 18859) –
https://paytm.com/shop/p/htc-desire-820q-white-HTC_820Q_16GB_WHITE_45610