Bengal Chief Minister Mamata Banerjee was on Wednesday re-elected as the chairperson of her ruling Trinamool Congress party unopposed, 10 months after single-handedly pulling off a landslide victory in last year's assembly election. Addressing party workers at the Trinamool Congress headquarters in state capital Kolkata, she stressed on the need for defeating Prime Minister Narendra Modi's nationalist Bharatiya Janata Party (BJP) in the next general elections. Terming the BJP as her “main enemy”, Mamata said, "We want all the parties against the BJP to come together but if someone does not listen to us, stands away with their arrogance, then, in the words of Gurudev RabindranathTagore, we will walk alone." READ: Mamata in the dock for 'disrespecting' national anthem On May 2 last year, Mamata scripted history by winning the assembly election for the third time in a row, bucking anti-incumbency and staving off a massive challenge from the BJP. Bengal had witnessed the most high-profile assembly polls last year. While Mamata harped on being Bengal’s daughter, the BJP asked people to vote for "change and socio-economic development" after nearly 50 years of Communist and Trinamool Congress rule. READ: Mamata blocks Bengal Governor on Twitter