As per Order 20 Rule 1 CPC , judgement has to be delivered within 30 days of final argument, in a civil suit.
Order 20 Rule 1(1) CPC states:
"The Court, after the case has been heard, shall pronounce judgment in an open Court, either at once, or as soon thereafter as may be practicable and when the judgment is to be pronounced on some future day, the Court shall fix a day for that purpose, of which due notice shall be given to the parties or their pleaders:
Provided that where the judgment is not pronounced at once, every endeavour shall be made by the Court to pronounce the judgment within thirty from the date on which the hearing of the case was concluded but, where it is not practicable so to do on the ground of the exceptional and extraordinary circumstances of the case, the Court shall fix a future day for the pronouncement of the judgment, and such day shall not ordinarily be a day beyond sixty days from the date on which the hearing of the case was concluded, and due notice of the day so fixed shall be given to the parties or their pleaders."