If you cannot find it legally, request the film in Bengali film forums (e.g., r/kolkata on Reddit). Fans often share google drive links of public domain or out-of-circulation films.
: Scholarly analysis suggests the character of Josna disrupted the traditional "bhadra" (refined) heroine trope, presenting a more spirited and "public" female figure that resonated with the masses. Full cast & crew - Beder Meye Josna (1991) - IMDb moviebaazcom beder meye josna 1991 bengali new