Advocates appeared:
For the Petitioner(s): Dr. G. Sivabalamurugan, AOR Mr. Selvaraj Mahendran, Adv. Mr. C.adhikesavan, Adv. Mr. Harikrishnan P.v, Adv. Mr. C.kavin Ananth, Adv.
For the Respondent(s): Mr. V Prabhakar, Sr. Adv. Mr. S. Rajappa, AOR Mr. R Gowrishankar, Adv. Ms. G Dhivyasri, Adv. Ms. Jyoti Parashar, Adv. Mr. Nanchil J Deekshith, Adv.

Based on the provided legal document, the key points are as follows:

1. The appeal concerns the applicability of res judicata in a property dispute case. The court clarified that res judicata cannot be decided merely on assertions made in an application seeking rejection of the plaint, especially under Order VII, Rule 11 of the Civil Procedure Code (CPC) (!) (!) .

2. The court emphasized that the scope of Order VII, Rule 11 CPC is limited to examining the averments in the plaint and the documents attached thereto. It does not permit an in-depth examination of the merits of the case or the pleadings, issues, and decisions in previous suits, which are necessary for determining the applicability of res judicata (!) (!) .

3. The court highlighted that issues such as whether an ex-parte decree was obtained by collusion, or whether the defendant played fraud, require a detailed examination of the previous decree and related circumstances. Such issues are beyond the scope of a Rule 11 application and should be decided after full trial (!) .

4. The court reaffirmed that the decision on whether a previous decree operates as res judicata involves consideration of pleadings, issues, and judgments from the earlier suit, which cannot be inferred or speculated upon at the stage of rejection of plaint (!) (!) .

5. The court observed that the trial court and the high court did not analyze or consider the case set up by the plaintiff in the plaint regarding the previous decree. Their decisions were based on an incorrect approach, which was therefore set aside (!) (!) .

6. The appellate court clarified that it had not expressed an opinion on whether the previous ex-parte decree would operate as res judicata but held that such an issue could not be decided under Order VII, Rule 11 CPC, especially given the specific allegations and circumstances raised in the plaint (!) .

7. Ultimately, the court allowed the appeal, set aside the High Court's order, and remanded the matter for an expeditious trial before the appropriate court, while keeping all grounds and issues open for final determination. The parties were directed to bear their own costs (!) (!) .

These points collectively underscore that the determination of res judicata requires a comprehensive examination during trial, and cannot be conclusively decided at the stage of rejection of the plaint based solely on the pleadings.