Madras High Court (Hemant Chandangoudar J., 15.07.2026), W.P.No.37116 of 2024 — C. Vijayakumar v. Branch Manager, Tamil Nadu Industrial Investment Corporation, Thiruvallur Branch. The petitioner, successful bidder in the respondent's public auction (sale confirmed 03.06.2010), was bound by auction conditions to register the sale deed within 30 days of full payment (failing which the sale was cancellable and payment forfeitable) and to clear sales tax arrears of Rs.57,84,767/-. He instead pursued settlement under the Tamil Nadu Sales Tax (Settlement of Arrears) Act, 2010 (application dated 25.08.2010); connected writ petitions (W.P.Nos.817 to 823 of 2011) attained finality only on 16.02.2023. On his representation dated 22.12.2023, the respondent issued proceedings THC:AMB:LAO:2023-24 dated 07.03.2024 demanding Rs.11,56,400/- as penalty charges plus GST at 18% before executing a fresh sale deed. The petitioner paid the demand, including GST, without protest or reservation of rights, and the sale deed was executed and registered on 22.03.2024 as Document No.1853 of 2024; he then sought quashing of the demand and refund of Rs.11,56,400/- by writ of Certiorarified Mandamus under Article 226. HELD: (i) the over-thirteen-year delay was directly attributable to the petitioner's own choice to pursue settlement instead of complying with the auction conditions; (ii) the respondent, which could have cancelled the sale and forfeited the amount paid, acted leniently and could not be faulted for insisting on its policy governing delayed execution of sale deeds; (iii) the petitioner had been informed earlier of penalty liability, paid without protest and took the benefit of registration, questioning the levy only thereafter; (iv) A. Subramaniam (W.P.No.21036 of 2009, decided 23.07.2019), relied on by the petitioner, was distinguished as turning on its own facts where the demand was challenged before payment (R.J. Kumar, W.P.No.7555 of 2009, relied on by the respondent, was noted); (v) no arbitrariness or illegality warranted interference under Article 226. Writ petition dismissed; no order as to costs.