PSLV-C40 carries a Microsatellite (Microsat) built by ISRO as a co-passenger payload. Microsat is a small satellite in the 100 kg class that derives its heritage from IMS-1 bus. This is a technology demonstrator and the fore runner for future satellites of this series. The satellite bus is modular in design and can be fabricated and tested independently of payload.

The vehicle would help in :

• Reduced Turn-around Time
• Launch on Demand
• Cost Optimization for Realization and Operation
• Flexibility in accommodating Multiple Satellites
• Minimum launch infrastructure requirements
• Heritage of proven design practises