The Union Territory of Daman and Diu had shared its administrator with Dadra and Nagar Haveli since its inception on 30 May 1987. The union territory of Daman and Diu was merged with the nearby territory of Dadra and Nagar Haveli to create the new union territory of Dadra and Nagar Haveli and Daman and Diu on 26 January 2020 and the office of Administrator of Daman and Diu was abolished on that date.
Administrator
Name Took office Left office 1 Gopal Singh 30 May 1987 18 July 1989 2 Khurshed Alam Khan 18 July 1989 25 March 1991 3 Bhanu Prakash Singh 25 March 1991 16 March 1992 4 K.S. Baidwan 16 March 1992 28 March 1994 5 Ramesh Chandra 28 March 1994 15 July 1995 6 S.P. Aggarwal 15 July 1995 26 June 1998 7 Ramesh Negi (acting) 26 June 1998 23 February 1999 8 Sanat Kaul 23 February 1999 23 April 1999 9 Ramesh Negi (acting) 23 April 1999 19 July 1999 10 O.P. Kelkar 19 July 1999 2003 11 Arun Mathur 2003 2006 12 R.K. Verma 2006 2009 13 Shri Satya Gopal, 2009 2011 14 Shri. Narendra cham, 2011 2012 15 B. S. Bhalla 28 September 2012 18 August 2014 16 Ashish Kundra 18 August 2014 13 March 2016 17 Vikram Dev Dutt 14 March 2016 29 August 201618 Praful Khoda Patel 29 August 2016 26 January 2020
See also Daman and Diu List of administrators of Dadra and Nagar Haveli and Daman and Diu List of administrators of Dadra and Nagar Haveli Governors in India
Sources http://www.worldstatesmen.org/India_states.html Ramjayam Nadar, Silvassa, Office Seceratary, UT PRESS CLUB