CREATE TABLE table_24574438_1 (population_density___km_2__ VARCHAR, ds_division VARCHAR)

Name the popultion density being manthai west
SELECT population_density___km_2__ FROM table_24574438_1 WHERE ds_division = "Manthai West"
SELECT "population_density___km_2__" FROM "table_24574438_1" WHERE "Manthai West" = "ds_division"