2.Type casting UIText field using tag values assign the border color…[ Use custom UIView class]

 UITextField *txtAddressLine1Ref = (UITextField*)[self viewWithTag:4]; //txtAddressLine1

        

        txtAddressLine1Ref.layer.borderColor = [[UIColor colorWithRed:197.0f/255.0f green:215.0f/255.0f blue:224.0f/255.0f alpha:1]CGColor];

        txtAddressLine1Ref.layer.borderWidth = 1.0f;