I have been working as a reviewer and examiner for Ph.D. theses in microbiology and biotechnology of number of Universities and national institutes of research in India as following:
 

University of Delhi (2001)
Indian Institute of Technology Chennai (2010)
Punjab University, Chandigarh (2010)
Jaslok Hospital Research Centre, Mumbai (2010)
Hinduja National Hospital, Mumbai (2010)
Indian Institute of Technology, Mumbai
National Environmental Engineering Research Institute (NEERI) Nagpur
Jawaharlal Nehru University (JNU) New Delhi (1999)
Naval Research Laboratory (NRC) Biotechnology Division, Ambernath, Mumbai (2009)
University of Mumbai (1998 to 2010)
University of Kolkata (2001)
University of Chennai (2000)
Pondicherry University (2004)
Shivaji University Kolhapur (1997)
University of Bhopal (1998)
University of Dharwad (2010)
Bhabha Atomic Research Centre (2010)
(BARC) Mumbai
University of Mysore (2009)
University of Gulbarga. (2006)
National Institute of Research and Reproductive Health (NIRRH) Mumbai. (2009)
University of Nagpur (2010)
Bharati Vidyapeeth University Pune. (1998)
Karnatak University Dharwad, Karnatak.