▁on ▁ 6 ▁March ▁ 1 9 6 8 ▁in ▁the ▁Indian ▁state ▁of ▁West ▁Beng al , ▁graduated ▁in ▁chem istry ▁from ▁Bur d wan ▁University ▁in ▁ 1 9 8 9 ▁and ▁completed ▁his ▁master ' s ▁degree ▁in ▁bio chem istry ▁in ▁ 1 9 9 2 ▁from ▁Kal y ani ▁University ▁before ▁se cur ing ▁a ▁Ph D ▁in ▁mole cular ▁bi ology ▁from ▁J aw ah ar l al ▁Ne h ru ▁University ▁( J NU ) ▁in ▁ 1 9 9 8 . ▁After ▁working ▁ ▁briefly ▁( 1 9 9 7 – 9 8 ) ▁as ▁a ▁research ▁assistant ▁at ▁the ▁department ▁of ▁micro bi ology ▁of ▁the ▁University ▁of ▁Neb r aska , ▁he ▁did ▁his ▁post - do ctor al ▁studies ▁at ▁Br igh am ▁and ▁Women ’ s ▁Hospital ▁of ▁Harvard ▁Medical ▁School ▁which ▁he ▁completed ▁in ▁ 2 0 0 1 . ▁Return ing ▁to ▁India ▁the ▁same ▁year , ▁he ▁joined ▁J aw ah ar l al ▁Ne h ru ▁University ▁as ▁an ▁assistant ▁professor ▁at ▁the ▁Special ▁Centre ▁for ▁M ole cular ▁Medicine ▁( SC MM ) ▁of ▁the ▁university ▁where ▁he ▁rose ▁in ▁ranks ▁to ▁become ▁an ▁associate ▁professor ▁in ▁ 2 0 0 5 ▁and ▁a ▁professor ▁in ▁ 2 0 1 1 , ▁finally ▁reaching ▁the ▁position ▁of ▁the ▁chair person ▁of ▁SC MM ▁in ▁ 2 0 1 1 . ▁In ▁between , ▁he ▁served ▁as ▁a ▁visit ing ▁fellow ▁at ▁Harvard ▁Medical ▁School ▁( 2