(Chairman, ISRO, 1984-94, SSB Prize-1975)
(Chairman, ISRO, 1994-2003)
(Director, IIG Mumbai, 1980-89)
(Director, SAC Ahmedabad, 1985-86)
(Director, PRL, 2005; SSB Prize- 1984)
(Director, IITM Pune, 2006-14, SSB Prize – 1995)
(Director, PRL, 2005-14, SSB Prize – 1994)
(Director, IPR Gandhinagar, 2013-16)
(Director, SPL Thiruvananthapuram, 1998-2010)
(Director, NARL Tirupati, 2007-2017)
(Director, NCESS Thiruvananthapuram, 2021-; SSB Prize-2015)
(Director, NIO Goa, 2017-; SSB Prize-2016)
(Director IITM Pune, 2022 - )
