sunday noted bengali theater personality kumar died kolkata protracted heart ailment kumar-da long theater group bohurupee joined close associate late sambhu mitra director playwright actor roles plays 'gallileo 'rakta karabi 'baki itihas bisarjan 'nabanna acting films worked professor rabindra bharati university kumar headed paschim banga natya academy quite time penned books awarded sanget natak akademi award opportunity meeting person good fortune speaking times published play bohurupi kumar-da editor theater journal kolkata play thought important addition repertoire plays bohurupi published years published play mine satyameva asked meet kolkata opportunity repent life hope pray soul rests peace 