Mamata Banerjee today won a landslide victory in Bengal but faced defeat in a cliffhanger of a contest in Nandigram to the BJP's Suvendu Adhikari, her former protege. "I accept the verdict in Nandigram - it is not a big deal. Don't worry," said the Chief Minister. The yo-yo trends in counting through the day saw Mamata Banerjee and Suvendu Adhikari alternately leading in different rounds, by margins ranging from six to 12,000.