Manastu Space is an Indian spacecraft-propulsion company based in Navi Mumbai. It develops propulsion systems using hydrogen-peroxide-based propellants, with products spanning CubeSat micropropulsion, small-satellite maneuvering and larger thrusters for orbital vehicles. Its work includes collision avoidance, orbit adjustment and end-of-life disposal. The company reported an in-orbit demonstration on ISRO’s PSLV Orbital Experimental Module in early 2025, advancing its propulsion technology beyond ground testing.