Order 37 Rule 3 of the Code of Civil Procedure, 1908 reads as follows:
3. Procedure for the appearance of defendant.-
(1) In a suit to which this Order applies, the plaintiff shall, together with the summons under rule 2, serve on the defendant a copy of the plaint and annexure thereto and the defendant may, at any time within ten days of such service, enter an appearance either in person or by pleader and, in either case, he shall file in court an address for service of notice on him.
(2) Unless otherwise ordered, all summonses, notices and other judicial processes, required to be served on the defendant, shall be deemed to have been duly served on him if they are left at the address given by him for such service.
(3) On the day of entering the appearance, notice of such appearance shall be given by the defendant to the plaintiff’s pleader, or, if the plaintiff sues in person, to the plaintiff himself, either by notice delivered at or sent by a prepaid letter directed to the address of the plaintiff’s pleader or of the plaintiff, as the case may be.
(4) If the defendant enters an appearance, the plaintiff shall thereafter serve on the defendant a summons for judgment in Form No. 4A in Appendix B or such other Form as may be prescribed fr6m time to time, returnable not less than ten days from the date of service supported by an affidavit verifying the cause of action and the amount claimed and stating that in his belief there is no defence to the suit.
(5) The defendant may at any time within ten days from the service of such summons for It’s affidavit or otherwise d such facts as may be deemed sufficient to entitle him to defend , apply on such summons for leave to defend such suit, and leave to defend may be granted to him unconditionally or upon such terms as may appear to the court or judge to be just:
Provided that leave to defend shall not be refused unless the court-is-satisfied.*hat the facts disclosed by the defendant do not indicate that he has a substantial defence to raise or that the defence intended to be put up by the defendant is frivolous or vexatious:
Provided further that, where a part of the amount claimed by the plaintiff is admitted by the defendant to be due from him, leave to defend the suit shall not be granted unless the amount so admitted to be due is deposited by the defendant in court.
(6) At the hearing of such summons for judgment,—
(a) if the defendant has not applied for leave to defend, or if such application has been made and is refused, the plaintiff shall be entitled to judgment forthwith; or
(b) if the defendant is permitted to defend as to the whole or any part of the claim, the court or judge may direct him to give such security and within such time as may be fixed by the court of judge and that, on failure to give such security within the time specified by the court or judge or to carry out such other directions as may have been given by the court or judge, the plaintiff shall be entitled to judgment forthwith.
(7) The court or judge may, for sufficient cause shown by the defendant, excuse the delay the defendant in entering an appearance or in applying for leave to defend the suit.