In Assam, leaders of different political parties are leaving no stone unturned to woo the voters as campaigning for the last and second phase of elections come to an end tomorrow afternoon. In this phase, 64 assembly constituencies spread over 14 districts in lower Assam goes to polls. Stalwarts of the Congress, BJP, AGP and All India United Democratic Front are making whirlwind tours in helicopters to address election meetings and rallies. Morigaon district in central Assam is considered to be a bastion of the Congress. AIR correspondent reports, that this time congress is facing a tough challenge from the opposition parties.