West Bengal government's plans to expropriate of land for a Special Economic Zone (SEZ) to be developed by the Indonesian-based Salim Group. At least 14 villagers were shot dead and 70 more were wounded. This led to a large number of intellectuals to protest on the streets. CPI(M) cadres allegedly molested and raped 300 women and girls during the Nandigram invasions. Banerjee wrote letters to Indian Prime Minister Manmohan Singh and Union Home Minister Shivraj Patil to stop what she called "state-sponsored violence" promoted by CPI(M) in Nandigram. Her political activism during the movement is widely believed to be one of the contributing causes to her landslide victory in 2011. The CBI report on the incident vindicated CPI(M)'s stand that Buddhadeb did not order the police to open fire. They did so only to disperse the unlawful assembly after every other standard operating procedure had failed. But supporting the violence in Nandigram by his own party workers, Buddhadeb Bhattacharya had said earlier "They (the oppositions) have been paid back in the same coin." There are allegations of involvement of some local TMC leaders in the Nandigram Violence (On 15 April Ms. Banerjee clarified this matter in a live interview to ABP Ananda). 2009–2011 electoral progress Before the 2009 parliamentary elections she allied with the United Progressive Alliance (UPA) led by Indian National Congress. The alliance won 26 seats. Banerjee joined the central cabinet as the railway minister (second tenure). In the 2010 Municipal Elections in West Bengal, TMC won Kolkata Municipal Corporation by a margin of 62 seats. TMC also won Bidhan Nagar Corporation by a seven-seat margin. In 2011, Banerjee won a sweeping majority and assumed the position of chief minister of the state of West Bengal. Her party ended the 34-year rule of the Left Front. Trinamool Congress performed well in the 2009 parliamentary election, winning 19 seats. Its allies in Congress and SUCI also won six and one seats respectively marking the best performance by any opposition party in West Bengal since the beginning of the Left's regime. Until then, the Congress victory of 16 seats in 1984, was considered their best show in opposition. Railway Minister (second tenure), 2009–2011 In 2009, Mamata Banerjee became the railway minister for the second time. Her focus was again on West Bengal. She led Indian Railways to introduce a number of non-stop Duronto Express trains connecting large cities as well