Toggle navigation Retractable Landing Gear Systems were handed over for Tapas and SWiFT drones and 18 types of filters for P-75 Submarine at CVRDE, Chennai Gear system for Tapas, SWiFT drones handed over at DRDO lab in Chennai ANI | Updated: Jan 10, 2021 19:39 IST Chennai (Tamil Nadu) [India], January 10(ANI): The handing over ceremony of Retractable Landing Gear Systems for Tapas and SWiFT drones and 18 types of filters for P-75 Submarine took place on Sunday at the Combat Vehicles Research and Development Establishment (CVRDE), Chennai. The ceremony was held in the presence of Dravida Munnetra Kazhagam (DMK) MP Kalanidhi Veeraswamy and Parliamentary Standing Committee Member for Defence and DRDO chief Dr G Satheesh Reddy.