Hello sry to reply so late and first of all thanx for being a helping hand much appreciated.
Ok sir,so what u said I did it all.
1.I did umounting of SD card and still the same problem.
2.Gone to "ALL APPS" in settings.I could not find a camera app settings although there was of gallery.I did clear gallery's cache and clear data.
Also I tried to look for app info of camera and it linked me to gallery app settings which means both gallery and camera are on same settings of "gallery" in all apps.
Till now,both of the solution does not solve the problem.
