- At the University of Hyderabad: Vice Chancellor (June 2011 ∼ ).
- At the School of Physical Sciences, Jawaharlal Nehru University, New Delhi: Professor (1990 ∼ ), Associate Professor (1986–90).
- At the School of Computational and Integrative Sciences (formerly the School of Information Technology), Jawaharlal Nehru University, New Delhi: Professor in the Center for Computational Biology and BioInformatics (since 2002).
- Tata Institute of Fundamental Research, Bombay, Fellow (1983–86), Visiting Fellow (1981–83); Post-doctoral Fellow, Caltech, Pasadena (1978–80).
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