Sankarapuram is a state assembly constituency in kallakurichi district of Tamil Nadu, India. Its State Assembly Constituency number is 79. It comprises portions of the Sankarapuram, Chinnasalem and Kallakkurichi taluks. It is a part of the Kallakurichi constituency for national elections to the Parliament of India. It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu, in India. Elections and winners in the constituency are listed below.