Rossari Biotech faces arbitration challenge over Unitop award
Rossari Biotech Limited has been served with a petition by the sellers of Unitop Chemicals Private Limited challenging the final arbitration award dated January 21, 2026. The petition was filed under Section 34 of the Arbitration and Conciliation Act, 1996, following the original share purchase agreement from June 02, 2021.

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Rossari Biotech Limited has been served with a petition by the sellers of Unitop Chemicals Private Limited challenging the final arbitration award passed earlier this year. The petition, filed under Section 34 of the Arbitration and Conciliation Act, 1996, contests the award dated January 21, 2026. This legal development impacts the company following its acquisition of Unitop Chemicals, a material unlisted subsidiary, in 2021.
The sellers, including Barkur Dharmaraj Shetty and B.D. Shetty HUF, initiated the original arbitration proceedings under the share purchase agreement (SPA) executed on June 02, 2021. The company had previously informed the exchanges regarding the passing of the final award by the Arbitral Tribunal on January 29, 2026. The current filing updates that status, indicating the sellers are now seeking to set aside that award.
The disclosure was made to BSE Limited and National Stock Exchange of India Limited on June 04, 2026, in compliance with Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The notification was signed by Parul Gupta, Company Secretary & Head - Legal.
Key Details of the Dispute
| Aspect | Details |
|---|---|
| Entity Challenging | Sellers of Unitop Chemicals Private Limited |
| Legal Provision | Section 34 of Arbitration and Conciliation Act, 1996 |
| Award Challenged | Arbitration Award dated January 21, 2026 |
| Original Agreement | Share Purchase Agreement dated June 02, 2021 |
| Petition Date | June 04, 2026 |
Historical Stock Returns for Rossari Biotech
| 1 Day | 5 Days | 1 Month | 6 Months | 1 Year | 5 Years |
|---|---|---|---|---|---|
| +5.10% | +14.79% | +12.09% | -1.97% | -17.32% | -53.89% |
What is the estimated financial liability for Rossari Biotech if the Section 34 petition is unsuccessful?
How might this prolonged legal dispute affect Rossari's integration strategy for Unitop Chemicals?
Could this legal challenge trigger a revision of the earn-out mechanisms or deferred payment obligations related to the 2021 acquisition?

































