Skyroot Aerospace is developing the first-ever Indian private rocket, Vikram-1, and has successfully test-fired its first solid rocket propulsion stage demonstrator Kalam-5.

Kalam-5 uses the exact same propellant, materials, and interface as the three solid propulsion stages of the Vikram-1 launch vehicle. The rocket has three solid fuel-powered stages each with a burn time ranging between 80 and 100 seconds. The company expects to launch for the first time in 2021.