when is death when death place is murshidabad and name is mir mehndi?
CREATE TABLE "children" (
  "name" text,
  "other_names" text,
  "birth" text,
  "death" text,
  "death_place" text,
  "mother" text
);
SELECT "death" FROM "children" WHERE "death_place"='murshidabad' AND "name"='mir mehndi';