Who won when mahesh manjrekar was the 2nd runner-up?
CREATE TABLE "series_winners" (
  "season" real,
  "season_premiere_date" text,
  "season_finale_date" text,
  "winner" text,
  "1st_runner_up" text,
  "2nd_runner_up" text
);
SELECT "winner" FROM "series_winners" WHERE "2nd_runner_up"='mahesh manjrekar';