<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--IFIndAs V2.1 (26-06-2026)--><xbrli:xbrl xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2026-01-31/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/IntegratedFinance_IndAS/2026-01-31/in-capmkt/in-capmkt-ent" xmlns:in-capmkt-roles="http://www.sebi.gov.in/xbrl/IntegratedFinance_IndAS/2026-01-31/in-capmkt-roles" xmlns:in-capmkt-types="http://www.sebi.gov.in/xbrl/2026-01-31/in-capmkt-types" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:xlink="http://www.w3.org/1999/xlink"><link:schemaRef 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unitRef="INRPerShare">3.75</in-capmkt:DilutedEarningsLossPerShareFromContinuingAndDiscontinuedOperations><in-capmkt:DisclosureOfNotesOnFinancialResultsExplanatoryTextBlock contextRef="OneD">Sr. No.	Particulars &lt;br /&gt; 
 &lt;br /&gt; 
1	The above unaudited financial results of the company for the quarter ended June 30,2026 have been reviewed by audit committee and approved by Board of Directors of Company at its meeting held on August 10, 2026. The financial results for quarter ended June 30, 2026 have been subjected to limited review by the statutory auditors of the Company. The Limited Review Report does not contain any qualification.  &lt;br /&gt; 
 &lt;br /&gt; 
2	The above unaudited financial results of the Company have been prepared in accordance with recognition and measurement principles of Indian Accounting Standards(“Ind-AS”) as prescribed under Section133 of the Companies Act,2013 read with relevant rules issued thereunder and in terms of the Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations 2015,as amended (the “Listing Regulations”).The unaudited results of M &amp; B Engineering Limited will be made available on Company’s website www.mbel.in and on websites of BSE www.bseindia.com and NSE www.nseindia.com. &lt;br /&gt; 
 &lt;br /&gt; 
3	The Company's activities are involved in manufacturing, supply, erection and installation of Pre-Engineered Buildings, Structure Steels, Steel Roofing and Components thereof and the management reviews the performance of the company as a single operating segment in accordance with IndAS-108“Operating Segments" notified pursuant to the Companies (Indian Accounting Standard)Rules2015. Accordingly, no separate segment information has been furnished. &lt;br /&gt; 
 &lt;br /&gt; 
4	The Company has formulated an employee stock option scheme namely the ESOP Scheme 2024 pursuant to resolutions passed by the Board on 6th June, 2024 and the Shareholders on 6th June, 2024. The ESOP Scheme 2024 has been amended vide Board resolution dated 14th July, 2025 and our Shareholders’ special resolution dated 15th July, 2025. The company is authorised to Grant 7,50,000 options at its discretion. On 15th July,2025 the company granted 2,52,800 options to eligible employees.  &lt;br /&gt; 
 &lt;br /&gt; 
The following table summarizes the number of options forfeited under The ESOP scheme 2024, during each period/year presented: &lt;br /&gt; 
 &lt;br /&gt; 
Particulars	Quarter ended	Year ended &lt;br /&gt; 
	30.06.2026	31.03.2026	30.06.2025	31.03.2026 &lt;br /&gt; 
	Unaudited	Audited	Unaudited	Audited &lt;br /&gt; 
ESOP Expense (INR in lakhs)	                  56.80 	          58.01 	 Nil 	         170.99  &lt;br /&gt; 
Options forfeited (in Nos)	                  8,740 	          9,490	 Nil 	         16,850  &lt;br /&gt; 
 &lt;br /&gt; 
5	During the previous year ended March 31, 2026, the Company has completed its Initial Public Offer (“IPO”) of 1,68,88,474 equity shares (including 57,306 equity shares issued to employees) of face value of INR 10 each at an issue price of share INR 385 per share (INR 349 per share for equity shares issued to employees) comprising fresh issue of 71,48,215 equity shares and offer for sale of 97,40,259 equity shares by selling shareholders, resulting in equity shares of the Company being listed on National Stock Exchange of India Limited ('NSE') and BSE Limited ('BSE') on August 6, 2025. &lt;br /&gt; 
 &lt;br /&gt; 
6	Consequent to allotment of fresh issue, the paid up equity share capital of the company stands increase from INR 5,000 lakhs consisting of 5,00,00,000 equity shares of Rs. 10 each to INR 5,714.82 lakhs consisting of 5,71,48,215 equity shares of Rs. 10 each. &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
7	The breakup of IPO proceeds from fresh issue is summarized below: &lt;br /&gt; 
 &lt;br /&gt; 
Particulars	Amount (INR in lakhs) &lt;br /&gt; 
Amount received from fresh issue	                      27,500.00  &lt;br /&gt; 
Less: Offer Expense in relation to fresh issue	                        1,568.00  &lt;br /&gt; 
Net IPO proceeds available for utilization	                      25,932.00  &lt;br /&gt; 
 &lt;br /&gt; 
8	Details of Net IPO proceeds available for utilization are as follows: &lt;br /&gt; 
 &lt;br /&gt; 
Sr. No.	Item Head	Amount as Proposed in the offer Document   &lt;br /&gt; 
(INR In lakhs)	At the end of the quarter &lt;br /&gt; 
 (INR In lakhs)	Total unutilized amount &lt;br /&gt; 
 ( INR In lakhs) &lt;br /&gt; 
1	Funding the capital expenditure requirements for the purchase of equipment and machinery, building works, solar rooftop grid and transport vehicles at our Manufacturing Facilities	13,057.90	2,375.10	10,682.80 &lt;br /&gt; 
2	Investment in IT software upgradation by our Company	520.00	-	520.00 &lt;br /&gt; 
3	Re-payment or pre-payment of term loans, in full or in part, of certain borrowings availed by our Company	5,875.00	5,875.00	- &lt;br /&gt; 
4	General Corporate Purposes	6,479.10	6,418.40	60.70 &lt;br /&gt; 
	Total	25,932.00	14,668.50	11,263.50 &lt;br /&gt; 
 &lt;br /&gt; 
9	Details of Net IPO proceeds remaining unutilized as on June 30,2026: &lt;br /&gt; 
Sr. No.	Unutilized Balance invested in	  Amount invested &lt;br /&gt; 
      (INR in lakhs)   &lt;br /&gt; 
1	Fixed Deposits with banks	                             10,804.00  &lt;br /&gt; 
2	Monitoring Account Balance	                                  406.90  &lt;br /&gt; 
3	Escrow Account Balance	                                    52.60 &lt;br /&gt; 
	Total	                             11,263.50  &lt;br /&gt; 
 &lt;br /&gt; 
10	The Ministry of Labour &amp; Employment (MoLE), Government of India. has announced the implementation of four Labour Codes viz. the Code on Wages, 2019, the Industrial Relations Code, 2020, the Code on Social Security, 2020 and the Occupational Safety, Health and Working Conditions Code, 2020, effective November 21, 2025. On the basis of information available, the Company has assessed and accrued the incremental impact for these changes at current estimate of 115.22 lakhs and disclosed as an 'Exceptional Item- Statutory impact of new Labour Codes' in the audited financial results of the Company for previous year ended March 31,2026. The Company continues to monitor the finalisation of Central / State Rules and clarifications from the Government on other aspects of the Labour Code and would provide appropriate accounting effect on the basis of such developments as needed. &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
11	The consolidated audited financial results of the Company are comprising of its subsidiary i.e., audited financial results of M/s. Phenix Building Solutions Private Limited and unaudited financial results of Phenix Construction Technologies INC. which are certified by management. &lt;br /&gt; 
 &lt;br /&gt; 
The figures for the quarter ended March 31, 2026 as reported in these unaudited financial results are derived balancing figure between the audited figures in respect of full financial year ended March 31, 2026 and the unaudited figures of nine months ended December 31, 2025. &lt;br /&gt; 
12	The Company previously charged depreciation on Property, Plant, and Equipment for the assets of the Proflex Division using the Written Down Value (WDV) method. Effective 1st April 2026, based on a technical assessment of the expected pattern of consumption of future economic benefits embodied in the assets, the Company changed its depreciation method from WDV to the Straight Line Method (SLM) for all assets of the Proflex Division. There is no material impact of this change in depreciation expense or profitability. &lt;br /&gt; 
13	Figures, wherever required, are regrouped / rearranged.  &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
 &lt;br /&gt; 
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