Mamata Banerjee is the first woman Chief Minister of West Bengal. She has the distinction of dethroning 34 years old rule of left front government in West Bengal.
She was also the first woman Railway Minister of India.
She started her career as a member of Indian National Congress and played a long innings in that party.
As she was completely anti-CPM, she developed differences with parent party when Congress went soft on CPM.
After she got disillusioned with Congress, she launched her own Trinamool Congress (TMC) in 1997.
In 2011, she scored comprehensive and emphatic victory in West Bengal assembly elections and took over as 11th Chief Minister of India.