In the context of Indian satellite launch vehicle, how many stages did GSLV-D1 has?
Three
The question asks how many stages the GSLV-D1 satellite launch vehicle had.
GSLV stands for Geosynchronous Satellite Launch Vehicle, an expendable rocket developed by ISRO to place communication and other satellites into geosynchronous transfer orbit.
The GSLV-D1 was the first developmental flight of this vehicle, launched in 2001, and it used a three-stage configuration.
The first stage is solid-fuelled and is supported by liquid-fuelled strap-on boosters, the second stage is liquid-fuelled, and the third is the cryogenic upper stage that uses liquid hydrogen and liquid oxygen.
This three-stage design gives the vehicle the thrust needed to carry heavier payloads to higher orbits than the PSLV.
Options of two, five and six stages do not match the actual configuration of the GSLV-D1 flight.
Hence the correct answer is Three.
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