Ø NSERC Fellowship from Canada (1981)
Ø Robert A. Welch Foundation Fellow, Texas, USA (1984)
Ø IUCr Young Scientist Award (1993)
Ø DBT Overseas Visiting Scientist (1995)
Ø DST Research Associate Award (1996)
Ø INSA Overseas Visiting Scientist (2000)
Ø Visiting Scientist to BNL, USA (2001)
Ø Tamil Nadu Scientist Award, TANSA (2003)
Ø DAAD Overseas Visiting Scientist (2004)
Ø INSA Visiting Scientist (2006)
Ø Indian Spectro Physics Association (2008)
Ø INSA Visiting Professorship (2009) 