Where the serving officer delivers or tenders a copy of the summons to the defendant personally, or to an agent or other person on his behalf, he shall require the signature of the person to whom the copy is so delivered or tendered to an acknowledgment of service endorsed on the original summons.
THE FIRST SCHEDULE · ORDER V Issue and service of summons
Order V Rule 16: Person served to sign acknowledgment
The Code of Civil Procedure, 1908