complete with operational supporting infrastructure. Satellite Launch Vehicle The Satellite Launch Vehicle (known as SLV-3) was the first space rocket to be developed by India. The initial launch in 1979 was a failure followed by a successful launch in 1980 making India the sixth country in world with orbital launch capability. The development of bigger rockets began afterwards. Augmented Satellite Launch Vehicle Augmented or Advanced Satellite Launch Vehicle (ASLV) was another small launch vehicle released in 1980s to develop technologies required to place satellites into geostationary orbit. ISRO did not have adequate funds to develop ASLV and PSLV at once. Since ASLV suffered repeated failures, it was dropped in favour of a new project. Polar Satellite Launch Vehicle Polar Satellite Launch Vehicle or PSLV is the first medium-lift launch vehicle from India which enabled India to launch all its remote-sensing satellites into Sun-synchronous orbit. PSLV had a failure in its maiden launch in 1993. Besides two other partial failures, PSLV has become the primary workhorse for ISRO with more than 50 launches placing hundreds of Indian and foreign satellites into orbit. Decade-wise summary of PSLV launches: Geosynchronous Satellite Launch Vehicle (GSLV) Geosynchronous Satellite Launch Vehicle was envisaged in 1990s to transfer significant payloads to geostationary orbit. ISRO initially had a great problem realising GSLV as the development of CE-7.5 in India took a decade. The US had blocked India from obtaining cryogenic technology from Russia, leading India to develop its own cryogenic engines. Decade-wise summary of GSLV Launches: Launch Vehicle Mark-3 Launch Vehicle Mark-3 (LVM 3), previously known as GSLV Mk3, is the heaviest rocket in operational service with ISRO. Equipped with a more powerful cryogenic engine and boosters than GSLV, it has significantly higher payload capacity and allows India to launch all its communication satellites. LVM3 is expected to carry India's first crewed mission to space and will be the testbed for SCE-200 engine which will power India's heavy lift rockets in future. Decade-wise summary of LVM 3 launches: SSLV The Small Satellite Launch Vehicle (SSLV) is a small-lift launch vehicle developed by the ISRO with payload capacity to deliver to low Earth orbit () or to Sun-synchronous orbit () for launching small satellites, with the capability to support multiple orbital drop-offs. Decade-wise summary of SSLV launches: Human Spaceflight Programme The first proposal to send humans into space was discussed by ISRO in 2006, leading to work on the