An agent is always allowed and permitted to make and set forth the pleadings on behalf of his Principal in India. Therefore, deposing on behalf of the Principal in a court being part of exercise of tendering evidence is not a forbidden exercise to be indulged in by an agent. Such persons are entitled to be cross examined as the act and art of cross examination being essentially to ascertain the veracity of the statements/submissions made by a witness and in that process, extract the whole of the truth. Section 18 of the Evidence Act, clearly permits and allows evidence to be collected even from an agent.
The power of attorney holder is not entitled to plead on behalf of the Principal, but he can only lead evidence or settle the pleading in the form of a plaint or written statement or petition. Smt. Shilpa Chaudhary v. Principal Judge, Family Court, Muzaffarnagar, 2016 (116) ALR 206.