Answer: (c)

Explanation:
Statement 1 is correct: The IN-SPACe is an autonomous nodal agency under the Department of Space. It facilitates and authorises the participation of private companies in space activities, acting as a regulatory and promotional interface between ISRO and private players.

Statement 2 is correct: Agnikul Cosmos successfully achieved a milestone with the world's first semi-cryogenic rocket engine test/flight involving a 3D-printed single-piece engine, marking a major innovation in rocket manufacturing technology.

Statement 3 is incorrect. Skyroot Aerospace has not developed liquid fuel for the GSLV (Geosynchronous Satellite Launch Vehicle). GSLV propulsion systems are developed by ISRO, not private startups. Skyroot is focused on its own launch vehicles (like Vikram series) and not on supplying propellants or engines for GSLV.