Needed a gud smarthphone with Microsd support for 20k

1. Budget?
₹20k

2. Display type and size?
Super AMOLED, minimum 4.7 inch, Resolution : 1920*1080 and above

3. Dual sim?
Yes

4. Preferred choice of brand?
Samsung,Sony,LG preferred but I can go with any brand if it necessary

5. What camera option you want (flash, front facing camera)?
Atleast 12 MP primary camera with LED flash and 5 MP front camera with HDR support

6. Preferred operating system? (Android, iOS, Windows Phone, etc).
Android and IOS

7. Preferred connectivity options (3G, 4G ready).
4G with Volte

8. Primary use of handset (multimedia, camera, internet, gaming etc)?
Gaming high priority,camera,internet and multimedia

9. Any specific mobile phones in consideration?
Galaxy S7 edge,One Plus 3

10. Any other info that you want to share
I needed a phone with snapdragon 820 chipset,min. 4 GB ram,64 GB internal memory,Microsd support and corning gorilla glass 4 protection