| Tea Cultivation, Manufacture and Sale | Bulk and specialty teas (Orthodox and CTC) produced in Assam estates and sold domestically and internationally. | Owns multiple tea estates; strong export relationships; reputed brand in Assam tea market. | Tea wholesalers, exporters, retail brands (B2B focus), with growing export markets. | Orthodox tea commands premium prices contributing higher margins. | 149 | 41 | Sale of tea products mainly in bulk; export contracts and domestic supply agreements. | Market-driven auction prices and long-term contracts with buyers. | Expanded estate acquisitions, rising export demand, increasing Orthodox tea sales. | Rossell Tea |
| Aviation Products and Services | Engineering, manufacturing, and support services for aerospace and defense equipment, including product support contracts. | Technical expertise, exclusive contracts with aerospace firms, strategic alliances with global players. | Defense sector, aerospace manufacturers, multinational companies in aviation (B2B focus). | Customized engineering solutions and product support services. | 217 | 59 | Long-term service contracts, product sales, and maintenance agreements. | Contractual, recurring revenue base with service fees. | New contracts, technology partnerships, government defense spending. | Rossell Aviation Services |