Out of these 42 satellites, 15 satellites are used for communication, 4 for meteorological observations, 14 for earth observations, 7 for navigation and 2 for space science purposes. During FY 2016-17, the total revenue accrued from communication satellites through leasing of INSAT/ GSAT transponders is Rs. 746.68 crore. 

With respect to earth observation satellites, the annual income from sale of remote sensing satellite data is Rs. 25.17 crores. The data and value added services derived from earth observation, meteorological, communication & navigation satellites are used to support various applications viz. resource monitoring, weather forecasting, disaster management, location based services, including societal applications. 

The expenses to realize and launching of these satellites are less than those of other countries. 

This information was provided by the Union Minister of State (Independent Charge) Development of North-Eastern Region (DoNER), MoS PMO, Personnel, Public Grievances & Pensions, Atomic Energy and Space, Dr Jitendra Singh in a written reply to a question in Rajya Sabha today.