Venkatachalapathy worked in the History Department of
Manonmaniam Sundaranar University from 1995 to 2000 and that of
University of Madras from 2000 to 2001. Since June 2001, he has been a faculty member of the
Madras Institute of Development Studies (MIDS). His main areas of research are social and cultural history of colonial Tamil Nadu. He is regularly involved in '
The Hindu Literary Festival' (The Hindu
Lit for Life) annual events as a speaker, interviewer, resource person etc. He also reviews books in
The Hindu. In 2007, he was awarded the
V. K. R. V. Rao prize in Social Science Research. He also writes columns for
The Hindu,
Frontline,
Outlook,
India Today,
Dinamalar and
Kalachuvadu magazine. ==Awards and fellowships==