| Satellite Name | GSat 20 (ex CMS 03) |
| Status | Planned |
| Mission Type | Communication |
| Orbit | Geostationary |
| Position | 74.0 ° East |
| Country | India |
| Operator | Indian National Satellite (INSAT) |
| Satellite Manufacturer | Indian Space Research Organization (ISRO) |
| Model (BUS) | I 3K (I 3000) |
| Launch Vehicle | GSLV Mk 3 |
| Launch Site | Sriharikota |
| Launch Date | 31.12.2023 |
| Satellite Lifetime | 15 Year |
| Mass | 3650 Kg |
| Transponders | |
| Downlink Frequency | Unknown |
| Uplink Frequency | Unknown |
| Beacon Frequency | Unknown |
| Norad Number | Unknown |
| Cospar Number | Unknown |
| Toplam TV | 0 |
| SD TV | 0 |
| HD TV | 0 |
| Ultra HD (4K) TV | 0 |
| 3D TV | 0 |
| Radio | 0 |
| Data | 0 |
| Feed | 0 |
