<Tr> <Th> Facility </Th> <Th> Location </Th> <Th> Description </Th> </Tr> <Tr> <Td> ISRO Propulsion Complex </Td> <Td> Mahendragiri </Td> <Td> Formerly called LPSC - Mahendragiri, was declared a separate centre . It handles testing and assembly of liquid propulsion control packages, liquid engines and stages for launch vehicles and satellites . </Td> </Tr> <Table> <Tr> <Th> Facility </Th> <Th> Location </Th> <Th> Description </Th> </Tr> <Tr> <Td> ISRO Satellite Centre </Td> <Td> Bangalore </Td> <Td> The venue of eight successful spacecraft projects is also one of the main satellite technology bases of ISRO . The facility serves as a venue for implementing indigenous spacecraft in India . The satellites Ayrabhata, Bhaskara, APPLE, and IRS - 1A were constructed at this site, and the IRS and INSAT satellite series are presently under development here . </Td> </Tr> <Tr> <Td> Laboratory for Electro - Optics Systems </Td> <Td> Bangalore </Td> <Td> The Unit of ISRO responsible for the development of altitude sensors for all satellites . The high precision optics for all cameras and payloads in all ISRO satellites including Chandrayaan - 1 are developed at this laboratory . Located at Peenya Industrial Estate, Bangalore . </Td> </Tr> <Tr> <Td> Satish Dhawan Space Centre </Td> <Td> Sriharikota </Td> <Td> With multiple sub-sites the Sriharikota island facility acts as a launching site for India's satellites . The Sriharikota facility is also the main launch base for India's sounding rockets . The centre is also home to India's largest Solid Propellant Space Booster Plant (SPROB) and houses the Static Test and Evaluation Complex (STEX). The Second Vehicle Assembly Building (SVAB) at Sriharikota is being realised as an additional integration facility, with suitable interfacing to a second launch pad . </Td> </Tr> <Tr> <Td> Thumba Equatorial Rocket Launching Station </Td> <Td> Thiruvananthapuram </Td> <Td> TERLS is used to launch sounding rockets . </Td> </Tr> </Table> <Tr> <Th> Facility </Th> <Th> Location </Th> <Th> Description </Th> </Tr>

How many satellite launching stations are there in india
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