Order IX of CPC deals with appearance and non-appearance of parties in a civil suit.
Order IX, Rules 7-11 deals with non-appearance of th Plaintiff.
If the defendant does not admit the claim of the plaintiff, then the court shall order for dismissal of the suit. But, when the defendant admits completely or any part of the claim made by the plaintiff then the court is empowered to pass a decree against the defendant on the ground of such admission and for rest of the claim, the suit will be dismissed. The plaintiff will have to refile the case within 30 days.
It was held in Shamdasani v. Central Bank of India (1952) 54 BOMLR 40), that the dismissal of the suit of the plaintiff without hearing him is a serious matter and it should not be adopted unless the court gets satisfied that in the interest of justice such dismissal is required.
Hope this answers your query.