CREATE TABLE table_204_255 (id DECIMAL, "constituency number" DECIMAL, "name" TEXT, "reserved for  ( sc/st/none ) " TEXT, "district" TEXT, "number of electorates  ( 2009 ) " DECIMAL)

the number of electorates represented in the niwari segment is more than those in which other segment ?
SELECT "name" FROM table_204_255 WHERE "number of electorates (2009)" < (SELECT "number of electorates (2009)" FROM table_204_255 WHERE "name" = 'niwari')
SELECT "name" FROM "table_204_255" WHERE "number of electorates (2009)" < (SELECT "number of electorates (2009)" FROM "table_204_255" WHERE "name" = 'niwari')