[Class : 37] Providing Installation, Commissioning, Maintenance And Support Repair An Overhaul Services In Relation To Land, Air And Sea Vehicles, Equipments & Systems Meant For Defence And Civil Use Falling In Class 37.

[Class : 42] Engineering Services Relating To Defence Equipments, Systems, Vehicles And Projects And Data Processing Apparatus And Technology, Technological Advisory Services, Providing Development, Integration, Simulation, Flight Mission Critical Software And Engineering Support Services For Defence, Aerospace And Civil Projects Falling In Class 42.

[Class : 9] Manufacture, Design, Development, Lrus And Simulators For Land, Air & Sea Vehicles & Equipment & Its Accessories, Parts, Components For Defence & Civil Use, Design & Development Of Embedded/Real Time Systems & Software, Communication Equipment, Hardware, Solutions & Software For Defence And Civil Use Falling In Class 9.