Bombay High Court (Ordinary Original Civil Jurisdiction) | Commercial Arbitration Petition No. 444 of 2024 (Solapur Municipal Corporation) with Commercial Arbitration Petition No. 252 of 2024 (JV) | Sandeep V. Marne, J. | 06 February 2026. Cross-petitions under Section 34 of the Arbitration Act against the sole Arbitrator's award dated 18 June 2020 in a Solapur STP/sewerage contract dispute (75 MLD STPs; concrete sewerage pipes; Agreement dated 02.01.2012; work order 27.02.2012). The award granted the JV Rs.32,15,94,780/- with interest (12% per annum from termination on 09.12.2013 to award date; 9% post-award) plus costs of Rs.51 lakhs, set aside four penalty orders (20.09.2012 to 06.09.2013), the termination order dated 09.12.2013 and the blacklisting order dated 11.04.2014, and rejected all counterclaims of the Municipal Corporation (Rs.188.71 crores). The JV did not press its cross-petition; only the Municipal Corporation's challenge was adjudicated. HELD: (i) Section 34 review is not appellate; interference lies only where findings rest on no evidence, ignore vital evidence, or are grossly irrational (perversity/patent illegality), per OPG Power, Associate Builders, Ssangyong and Dyna Technologies; a possible view of the arbitrator passes muster; (ii) the Tribunal's findings across all fifteen sub-heads of delay are evidence-based — the Municipal Corporation led no positive evidence, its accusatory letters alone cannot establish contractor delay, and admissions in cross-examination are best evidence (Narayan Bhagwantrao Gosavi Balajiwale; United India Insurance); delay was solely attributable to the Municipal Corporation/PHE — covering condoned 97-day bhoomi poojan delay, second and third bar charts, PWD/NHAI/Railway permissions (onus on employer), unavailable STP lands, faulty drawings/line-out, Degaon STP layout approval (over 3 months), unresolved transformer procurement, late demolition permission, 10-month engineering package approval, billing break-up, general arrangement drawings, sewerage network design, KT weir, delayed RA bill payments, and MJP–Corporation non-coordination (only first-bar-chart delay found against the JV); (iii) consequently the penalties, the termination and the blacklisting were invalid — Clause 39 barred sub-contracting of the 'whole' works only, so the KEC International allegation was unsound; (iv) the 18th RA bill stood certified at Rs.19,25,91,000/- by the PMC (MJP) and the Corporation; the JV could not disown it while pursuing its higher claim of Rs.29.65 crores; withholding the net certified amount of Rs.16,45,96,753/- by set-off against invalid penalties was erroneous; (v) the LBT refund claim (Rs.62,41,952/-) rested on a pre-bid clarification limiting LBT to materials procured within Corporation limits — a plausible view; (vi) 'loss of profit' (wrongful termination) is distinct from 'loss of profitability' (delay/overstay): the former permits a reasonable percentage of unexecuted value without proof of actual loss (A.T. Brij Paul Singh — 15%; Dwaraka Das — 10%; State of West Bengal v. S.K. Maji — 15%), while the latter demands positive evidence (Unibros; Batliboi; Bharat Coking Coal distinguished as overstay cases); the award of 10% on the tender-estimate-based balance (Rs.87 crores of ~Rs.139 crores estimate) was extremely conservative, equating to about 5.5% of the actual unexecuted value against the contract value of Rs.212,52,02,467/-, and warranted no interference. Both petitions dismissed (No. 252 of 2024 as not pressed); the JV's Bank Guarantee to be returned and the Municipal Corporation's Bank Guarantee to be encashed and paid to the JV — those directions stayed for eight weeks; no further costs; Interim Application (L) No. 2001 of 2022 disposed.