Bulletin of Mathematical Biology (Springer)

Current Science (Indian Academy of Sciences)

IMA Journal of Mathematics Applied to Medicine and Biology (Oxford)

Journal of Biosciences (Academy and Springer)

Journal of Theoretical Biology (Elsevier)

Lecture Notes in Mathematics Series (Springer-Verlag)

Mathematical Medicine and Biology: A Journal of the IMA (Oxford)

Statistics in Medicine

Theoretical Population Biology (Elsevier)

Asian Population Studies

Sankhya (series) B

Resonance (Academy and Springer)

Vaccine (Elsevier)

Acted as a referee for International and national funding agencies

2007-present : Mathematical Association of America

2007-present: American Mathematical Society

2007-present: Society for Industrial and Applied Mathematics

2006-2007: The London Mathematical Society (elected)

2005-06 : The European Society for Mathematical and Theoretical Biology

2000-present:Indian Society for Medical Statistics

1998-00, 2008-09:International Union for Scientific Study of the Population