CREATE TABLE table_20030 ("State" TEXT, "Date of Polls" TEXT, "Seats  ( ACs ) " FLOAT, "Date of Counting" TEXT, "Incumbent" TEXT, "Election Winner" TEXT)

Which dates of polls occur in the Mizoram state?
SELECT "Date of Polls" FROM table_20030 WHERE "State" = 'Mizoram'
SELECT "Date of Polls" FROM "table_20030" WHERE "State" = 'Mizoram'