CPC Section 12

12. Bar to further suit.

1. [(1)] Where a plaintiff is precluded by rules from instituting a further suit in respect of any particular cause of action, he shall not be entitled to institute a suit in respect of such cause of action in any Court to which this Code applies.

2. [(2)] Where a person challenges the validity of a judgment, decree or order on the plea of fraud, misrepresentation or want of jurisdiction, he shall seek his remedy by making an application to the Court which passed the final judgment, decree or order and not by a separate suit.

3. [(3)] For purposes of the disposal of an application under subsection (2), the Court may, in the interest of expeditious disposal, apply such fair procedure as the circumstances of the case warrant, and shall, unless for reasons to be recorded it directs otherwise, order any fact to be proved or disproved by affidavit.