CREATE TABLE table_1610301_1 (population__2011_ INT, district VARCHAR)

What was the minimum population in 2011 of the district of Prakasam?
SELECT MIN(population__2011_) FROM table_1610301_1 WHERE district = "Prakasam"
SELECT MIN("population__2011_") FROM "table_1610301_1" WHERE "Prakasam" = "district"