All right folks! Apple just released iOS 9.3.1 . The 7th update to iOS 9. This update doesn't do anythiing else, just fixes safari bug. After the release of iOS 9.3, stock apps like safari, mail, notes and other apps started to crash so related to that Apple released this update, after tapping or long pressing on a web link. While most users affected were on iOS 9.3, some customers on earlier versions of iOS also complained of crashing problems.
This update is released as Over the Air update (OTA)
Hope it fixes your problems.