6 6 ▁it ▁was ▁upgrad ed ▁into ▁a ▁post grad uate ▁institution ▁with ▁M . Sc . ▁Mathemat ics ▁and ▁M . A . ▁Econom ics . ▁In ▁ 1 9 7 2 ▁B . Com ▁course ▁was ▁started ▁and ▁subsequently ▁the ▁following ▁post ▁gradu ate ▁courses ▁came ▁into ▁being : ▁M . A . ▁T amil ▁Liter ature ▁( 1 9 7 2 ), ▁M . A . ▁English ▁Liter ature ▁( 1 9 7 9 ), ▁M . Sc . ▁Chem istry ▁( 1 9 8 2 ), ▁M . Sc . ▁Physics ▁( 1 9 8 4 ), ▁M . Sc . ▁Zo ology ▁( 1 9 8 7 ), ▁M . Sc . ▁Geography ▁( 1 9 9 4 ), ▁M . C . A . ▁( 1 9 9 8 ) ▁and ▁the ▁department ▁of ▁T amil , ▁English , ▁physics ▁and ▁Chem istry ▁were ▁elev ated ▁to ▁the ▁status ▁of ▁Research ▁Depart ments ▁started ▁offering ▁M . Ph il . ▁and ▁Ph . D . ▁programs . ▁In ▁the ▁year ▁ 2 0 0 0 - 2 0 0 1 ▁the ▁depart ments ▁of ▁Zo ology , ▁Geography ▁and ▁Mathemat ics ▁were ▁elev ated ▁as ▁research ▁Depart ments ▁offering ▁M . Ph il ▁and ▁Ph . D . ▁programs . ▁It ▁was ▁soon ▁followed ▁by ▁the ▁department ▁of ▁Econom ics ▁in ▁the ▁year ▁ 2 0 0 2 - 0 3 ▁and ▁Com merce ▁in ▁the ▁year ▁ 2 0 1 2 - 1 3 ▁to ▁offer