Answers

2015-08-31T19:19:01+05:30
He was not informed so he didn't take part in the conference.
2 4 2
2015-08-31T19:56:40+05:30
He had not been informed, so he didn't take part in the conference.

This is the change

1 5 1
Ok thanx!
click thanks button pleasee
kk
Why