2009–2014 Secretary, DoS / Chairman ISRO
2015–2018 Secretary DoS / Chairman ISRO
2018–2022 Secretary, DDR&D & Chairman DRDO
2022–2025 Secretary, DoS & Chairman ISRO
2015–2021 Secretary, DST
Group Vice-Chancellor, BITS Pilani
2026 IEEE President & CEO
IEEE President-Elect
2026 IEEE Past President
2024 IEEE President
2023 IEEE President
2026–2027 IEEE AESS President
2024–2025 IEEE AESS President
2022–2023 IEEE AESS President
2028–2029 IEEE AESS President
IEEE Division IX Director
IEEE Division V Director
IEEE Division VI Director
DS & AD, URSC
Director, CSIR-NAL
Director, CABS, DRDO
DS & VC, DIAT Pune
2026 IEEE AP-S President
IEEE VP–TAB
2025 IEEE MTT-S President
DS & Former AD, USRC
CU, MGA Chair, IEEE AP-S
Director, MCF, ISRO
JHU, USA
Northrop Grumman
2023 IEEE EMC Society President
OS & Former AD, LRDE
DS & Former AD, USRC
President, SIA-India
DS & Former Director
Head, Airbus Defence & Space, India
DS & Former Director, SAC
DS & Former Director, NRSC
Vice Chancellor, GSV
OS & Former AD, URSC
Director, SCL Chandigarh
OS & Former Director, DLRL
2002 IEEE MTT-S President
President, World Class Telecommunications
Director, NC
Director, IIITDM Kanchipuram
Director – Promotion, IN-SPACe
OS & Former Director, ISTRAC
2022–2023 President, IEEE TEMS
Former SVP, TCS
Director, ISTRAC
Director, SSPL
Director, GTRE
Director, IIM Mumbai
DS & Former Director, LRDE
President IETE, President BES & Former ADG Prasar Bharati
