West Bengal Chief Minister Mamata Banerjee alleged on Wednesday that she was attacked by "four-five men" who manhandled her during the election campaign in Nandigram, because of which she was injured in the left leg. The incident happened around 6.15 pm when Banerjee was about to leave Birulia area near Reyapara after praying at a local temple. The chief minister also has severe pain in the waist, TMC MP Sukhendu Sekhar Ray said.