Express News Service KOLKATA: The second phase of West Bengal Assembly elections witnessed a massive face-off between two heavyweight contestants -- CM Mamata Banerjee and her former cabinet colleague Suvendu Adhikari -- in Nandigram over the issue of the former's surprise visit to a polling booth. She rushed to the booth after receiving complaints that TMC polling agents are not being allowed there, and spent two hours sitting in a wheelchair. Soon after Mamata left, Suvendu visited the same booth and said Mamata was scared of her defeat in Nandigram. When Mamata was arguing with the senior police officers outside the polling booth, BJP supporters assembled there and raised 'Jai Sri Ram' slogans. Another group of TMC supporters, too, gathered nearby and shouted 'Khela Hobe' (there will be a game). Mamata called up Governor Jagdeep Dhankhar from the booth and complained to him of "false voting" and "failure" of central force to prevent it. She also wrote a complaint letter to the Election Commission.