▁Z ila ▁School ▁in ▁ 1 9 0 8 . ▁After ▁working ▁as ▁the ▁head master ▁of ▁Sit ak unda ▁High ▁School ▁for ▁some ▁time ▁in ▁ 1 9 1 4 , ▁he ▁pract iced ▁law ▁at ▁Bash ir hat ▁in ▁ 2 4 ▁P arg anas . ▁In ▁ 1 9 1 5 ▁he ▁was ▁elected ▁Vice - Ch air man ▁of ▁the ▁town ' s ▁municipality . ▁He ▁was ▁Sh ar atch andra ▁L ah iri ▁Research ▁Fellow ▁( 1 9 1 9 – 2 1 ) ▁under ▁D ines h ▁Ch andra ▁Sen ▁at ▁the ▁University ▁of ▁Cal cut ta ▁and ▁joined ▁the ▁University ▁of ▁D h aka ▁as ▁a ▁lect urer ▁in ▁ 1 9 2 1 ▁in ▁S ansk rit ▁and ▁Bang la . ▁During ▁his ▁period ▁at ▁the ▁University ▁of ▁D h aka ▁he ▁did ▁research ▁on ▁the ▁orig ins ▁of ▁the ▁Beng ali ▁language . ▁In ▁ 1 9 2 5 , ▁he ▁presented ▁his ▁th esis ▁that ▁Bang la ▁as ▁a ▁language ▁origin ated ▁from ▁Ga udi ▁or ▁Mag ad hi ▁P rak rit . ▁He ▁was ▁principal ▁of ▁Bog ra ▁Az iz ul ▁Hu q ▁College ▁from ▁ 1 9 4 4 – 1 9 4 8 . ▁He ▁then ▁returned ▁to ▁the ▁University ▁of ▁D h aka , ▁serving ▁as ▁head ▁of ▁the ▁Bang la ▁Department ▁and ▁de an ▁of ▁the ▁Fac ulty ▁of ▁Arts . ▁He ▁taught ▁part - time ▁at ▁the ▁Law ▁Department ▁( 1 9 2 2 – 2 5