The by-elections in three parliamentary constituencies and 30 assembly constituencies began across different states today. The three parliamentary constituencies going for poll today are UT of Dadra and Nagar Haveli and Daman and Diu, Madhya Pradesh and Himachal Pradesh. The Election Commission has decided to hold these bye-elections to fill vacancies and has fixed the dates of poll events as per provisions under Section 30 and date of withdrawal under Section 30(c) of the Representation of the People Act, 1951. The results of these polls will be announced on November 2.