Q: Internet is not working on wifi network after updating my iphone 5s to IOS 9.3.1

My iphone's internet is not working if it is connected to WiFi and other phone's internet works properply.

This is happening only after updating current  IOS by IOS 9.3.1 version.

So many things i have tried but none of  the one resolved Same .

Hard reset to phone,reset all network setting and change DNS.

Can any one help me to resolve my issue???