CREATE TABLE table_204_851 (id NUMBER, "serial number" NUMBER, "river" CLOB, "name" CLOB, "area  ( km2 ) " NUMBER, "district" CLOB, "co-ordinate" CLOB, "altitude  ( m ) " NUMBER)

how many are in the palakkad district ?
SELECT COUNT(*) FROM table_204_851 WHERE "district" = 'palakkad'
SELECT COUNT(*) FROM "table_204_851" WHERE "district" = 'palakkad'