Which of the following statements are correct about general elections to the Lok Sabha? 1. Each Parliamentary Constituency will elect only one member 2. Prior to 1962, there were both single-member and unalti member constituencies. These milti-member constituencies used to elect more than one member. 3. The first general election was held in India during 1951-1952 4. The total strength of Lok Sabha at the time of first general election was 543.