D-Link DWA-171 Wireless AC Dual-Band Nano USB Adapter Rs.764 From AMazon
http://www.amazon.in/D-Link-DWA-171-Wireless-Dual-Band-Adapter/dp/B00CL58JYQ


Dual band performance - up to 150 mbps (2. 4ghz) or 433 mbps (5ghz) to deliver fast wireless speeds and less interference for maximum throughput
Backward compatibility - compatible with a/b/g/n devices
Simple setup - wps push button for easy connection to your wireless network
Compact design for flexible placement