The PSLV-C55 was the 57th mission of Indian Space Research Organisation's Polar Satellite Launch Vehicle (PSLV) and the 16th flight of the PSLV-CA variant.

[1] It was launched on Saturday, 22 April 2023 at 14:19 IST / 08:49 UTC from Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh, India.

There are non-separable payloads mounted on MSA (multi-satellite adapter).

[5] Payloads are powered on by a command after all satellites are separated.

[1] As a part of POEM-2 (PSLV Orbital Experimental Module), there are seven experimental non-separable payloads:[1][6] Propellant:[1] The PSLV C55 rocket has four stages; each one was self-contained, with its own propulsion system, thereby capable of functioning independently.