Madras High Court (K. Kumaresh Babu, J.) — S.A.No.434 of 2017 under Section 100 CPC, decided 01.08.2025. The plaintiff-appellant's suit (O.S.No.943 of 2012, XVII Assistant City Civil Court, Chennai) for permanent injunction restraining interference with his collection of monthly rents from tenants was decreed on 04.01.2016; the first appellate Court (A.S.No.136 of 2016, XVI Additional City Civil Court, Chennai, decree 20.12.2016) reversed it, holding the 1st defendant had valid title under the Ex.B8 sale from the 2nd defendant. Substantial question of law framed: whether the 2nd defendant, whose own purchase had been cancelled by the fair and decreetal order dated 19.07.2010 in I.A.No.19007 of 2007 in O.S.No.9381 of 2006 (District Munsif Court, Chennai; Ex.B7), had any right to execute the sale deed in favour of the 1st defendant. Held: an interlocutory application already disposed of, determining a party's right, does not become infructuous on withdrawal of the suit — only pending I.As do; the cancelling order's operation survived, the 2nd defendant's C.R.P.No.2829 of 2010 having been dismissed as infructuous (Ex.B10) after the suit was withdrawn on 06.01.2011, and the I.A. order never having been set aside in the manner known to law. The 2nd defendant therefore had no valid title and the Ex.B8 sale was not a valid sale. The first appellate Court's judgment and decree dated 20.12.2016 was set aside and the Second Appeal allowed, with no costs.