Varanasi, March 5: While addressing intellectuals meet in Kashi Samagam, Prime Minister Narendra Modi on Sunday launched a scathing attack on his political opponents, especially Congress. Since last two days, PM Modi is in Varanasi, in his Lok Sabha constituency, where he has addressed two public meetings and carried out a massive roadshow in the holy city, which will go to polls on Wednesday, in the last phase of Uttar Pradesh assembly elections.