Ahead of the Lok Sabha polls, 11 parties on Tuesday (February 25) got together with a vow to defeat Congress-led UPA and prevent BJP from coming to power by presenting themselves as an alternative to them. The announcement was made after a meeting here of the leaders of the parties including JD (U), Left, Samajwadi Party, AIADMK. However, the ticklish issue of their Prime Ministerial candidate was put off till after the elections.