Satellite-based communications provide a wider geographical coverage and these are very useful as primary means of communications for the troops deployed in remote and inhospitable areas, island territories and for the Quick Reaction Forces. The Indian Army is exploiting the facilities available on the INSAT series of satellites. This medium is being used to supplement terrestrial communication (where operationally justified) and for strategic long haul communications for special applications. Satellite terminals were effectively employed in Sri Lanka at Trincomalee and Jaffna to provide communications, in Male and more recently during Kargil war.

A number of sophisticated e-mail, data communication systems and value added services are being set up in the country for providing effective national and international coverage. There is a plan to join these networks so that the messages are cleared speedily to all locations of interest in a cost-effective manner. The Corps of Signals is also using INMARSAT terminals for overseas communications to support the contingents, which form part of UN Peace Keeping Forces in many countries.

The connectivity to remote and mountainous areas has been achieved by establishing broad band bridges between important locations. Apart from this, the forces deployed in low intensity conflict operations have also been provided with exclusive satellite communications.