What is is his significance at this point of time?
How did he come to know about Paridhi's "Uss Raat"?
Who hired him to look into the case?
AND Why did Yash ji believe him so easily...I understand that he woudn't have been able to gather the guts to watch the CD, but couldn't he just inspect the facts before Judging Paridhi? Does he believe that outsider more than his own family member?