CREATE TABLE table_6687 ("Year  ( Ceremony ) " TEXT, "Film title used in nomination" TEXT, "Original title" TEXT, "Director" TEXT, "Result" TEXT)

what year did naga bonar take place
SELECT "Year (Ceremony)" FROM table_6687 WHERE "Original title" = 'naga bonar'
SELECT "Year (Ceremony)" FROM "table_6687" WHERE "Original title" = 'naga bonar'