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2026 Supreme(Bom) 364

IN THE HIGH COURT OF JUDICATURE AT BOMBAY
Sandeep V. Marne, J.
Mumbai Metropolitan Region Development Authority - Petitioner
Versus
Mumbai Metro One Private Limited - Respondent
Commercial Arbitration Petition No. 427 of 2024, Interim Application No. 3495 of 2025
Decided On : 24-02-2026

Advocates Appeared:
For the Petitioner:Mr. J.P. Sen, Senior Advocate with Mr. Kunal Vaishnav, Ms. Prachi Garg, Ms. Prerna Verma & Ms. Sayalee Dolas i/b DSK Legal, Ms. Gathi Prakash with Ms. Nidhi Asher & Ms. Vidushi Trivedi i/b Cyril Amarchand Mangaldas
For the Respondent:Mr. J.J. Bhatt, Senior Advocate with Ms. Anjali Chandurkar, Mr. Dhishan Kukreja, Mr. D.J. Kakalia, Ms. Bhavna Singh Jaipuria, Mr. Paresh Patkar, Mr. Ayaan Zariwalla & Ms. Bhakti Chandan i/b Mulla & Mulla & CBC

Arbitral awards under Section 34 set aside in part for patent illegality where claims lack evidence of loss; sustained for plausible delay findings, scope changes; severability applies to separable portions; proof mandatory for profitability losses.

Headnote:(A) Arbitration and Conciliation Act, 1996 - Section 34 - Challenge to arbitral award - Partial set aside where claims lack evidence of actual loss (overheads, interest, opportunity costs) constituting patent illegality and perversity; sustained for plausible interpretation of delay liability, scope change, site access failure (Paras 62-65, 139-170, 224-225).

(B) Concession Agreements - Delay in site access/right of way - Entitlement to damages beyond time extension where no contractual bar; responsibility inferred from extensions granted, factual inquiry into encumbrances (Paras 69-93, 94-101).

(C) Damages - Proof required for loss of profitability (overheads, financing, profits); mere books entries, statements insufficient without supporting documents; guesswork impermissible absent evidence; direct costs only reimbursable (Paras 139-152, 29.2 CA).

(D) Contract Interpretation - Arbitral tribunal's view exclusive unless rewriting terms; change in construction method as scope variation plausible (Paras 73, 198-200). (E) Severability - Doctrine applies to awards; good/bad parts separable without interdependence (Para 224).

Facts of the case:
Disputes under concession agreement for elevated rail project; delays in encumbrance-free site delivery led to cost escalations; majority arbitral award granted claims for viability funding deductions, alternate site rent, bridge redesign, system costs, overheads, financing, profit loss; challenged for perversity, no evidence.

Findings of Court:
Sustained claims for viability funding deductions (Rs.35 crores + interest), alternate site rent compensation (Rs.13.16 crores), bridge costs (Rs.30.48 crores), system works increase (Rs.163.22 crores); set aside overheads (Rs.100 crores), financing (Rs.125 crores), profit opportunity (Rs.23.48 crores) for evidentiary failure; arbitration costs reduced to Rs.50 lakhs.

Issues: Delay attribution and compensation entitlement; proof of cost increases; award severability; evidence standards for indirect losses.

Ratio Decidendi: Awards invalid for no evidence supporting loss quantification; plausible contractual interpretations, evidenced claims upheld; partial severance preserves valid portions; dissenting views aid scrutiny without binding (Paras 116, 132, 147, 150, 224).

Result: Petition partly allowed; award modified, partly sustained/set aside.

Table of Content
1. challenge to majority arbitral award under section 34. (Para 1 , 2 , 3)
2. factual background of metro-1 project and concession agreement. (Para 4 , 5 , 6 , 7 , 8 , 9 , 10)
3. claims, counterclaims, and operative parts of awards. (Para 11 , 12 , 13 , 14 , 15 , 16)
4. procedural history and intervention application. (Para 17 , 18 , 19)
5. petitioner's arguments on perversity and patent illegality. (Para 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39)
6. respondent's defense upholding award's reasoned findings. (Para 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53)
7. overview of disputes and scope of section 34 review. (Para 54 , 55 , 56 , 57 , 58 , 59 , 60)
8. limited judicial interference under section 34 principles. (Para 61 , 62 , 63 , 64 , 65)
9. mmrda's obligation for encumbrance-free row within 180 days. (Para 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75)
10. mmrda responsible for project delay via row failure. (Para 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93)
11. entitlement to damages beyond concession extension. (Para 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101)
12. proof of total project cost increase upheld. (Para 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112)
13. foreign exchange loss in system works compensated. (Para 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121)
14. overhead expenses claim rejected for lack of evidence. (Para 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 , 140 , 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152)
15. additional interest claim set aside absent proof. (Para 153 , 154 , 155 , 156 , 157 , 158 , 159 , 160 , 161 , 162 , 163 , 164 , 165 , 166 , 167 , 168 , 169 , 170)
16. opportunity cost claim unsustainable without evidence. (Para 171 , 172 , 173 , 174 , 175 , 176 , 177 , 178 , 179 , 180 , 181 , 182 , 183 , 184)
17. andheri bridge change qualifies as scope variation. (Para 194 , 195 , 196 , 197 , 198 , 199 , 200 , 201 , 202 , 203 , 204)
18. wadala rent reimbursement upheld partially. (Para 205 , 206 , 207 , 208 , 209 , 210 , 211 , 212 , 213 , 214 , 215 , 216 , 217 , 218 , 219 , 220 , 221 , 222 , 223)
19. severability applied to modify unsustainable claims. (Para 224 , 225 , 226)
20. award partly sustained; deposit handling ordered. (Para 227 , 228 , 229 , 230 , 231 , 232)

JUDGMENT :

SANDEEP V. MARNE, J.

THE CHALLENGE

1) By this Petition filed under Section 34 of the Arbitration and Conciliation Act, 1996 (Arbitration Act), Petitioner has challenged majority Award delivered by the three-member Arbitral Tribunal on 29 August 2023. The majority Award has allowed claims of the Respondents in the sum of about Rs. 496.48 crores along with interest. The Award directs Petitioner to pay to the Respondent Rs. 35 crores towards deductions made in the tranches of Viability Gap Fund alongwith interest. The Award directs Petitioner to pay to the Respondent amount of Rs. 13,16,00,000/- towards compensation for additional cost incurred on account of payment of rent for the land at Wadala together with interest. Petitioner is further directed to pay compensation of Rs.30,48,00,000/- towards construction of steel bridge instead of concrete bridge at Andheri Station alongwith interest. The Petitioner is further directed to pay to the Respondent amount of Rs.411,70,21,968/- towards increase in the cost of the Project. The Arbitral Award also holds Respondent entitled to extension of time for completion of Project upto 7 June 2011. The award grants pendent lite interest, post award interest, as well as costs of arbitration in favour of the Respondent. All counterclaims of the Petitioner have been rejected in the majority Award.

2) A separate dissenting Award has been delivered by the learned co-arbitrator on 29 August 2023 rejecting all claims of the Respondent with a direction to the Respondent


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