What is the 2011 population if the headquarters is Chittorgarh?
CREATE TABLE "table1_2168295_1" (
  "district" text,
  "headquarters" text,
  "area_km" real,
  "population_2011" real,
  "division" text
);
SELECT "population_2011" FROM "table1_2168295_1" WHERE "headquarters"='Chittorgarh';