Raju: Sometimes what happens is when the IO calls a witness and he says I don't know anything. It doesn't mean the first statement is wrong. When he is confronted with material and says I was wrong.

It is not necessary that first and second statements have to be correct. Asli cheez is the matter of trial. It's for the IO to decide. Accused can't decide. They don't name him doesn't mean it's exculpatory. I'm learning criminal law for the first time.