the joint protests of the Trinamool Congress, Socialist Unity Centre of India, and Indian National Congress, the land acquisition dispute in Singur, the Nandigram incident, and the Netai incident. In January 2006 the Supreme Court of India issued notices to Left Front Government ministers including Buddhadeb Bhattacharjee and others in relation to land allotments made in the Salt Lake City township in Kolkata. Buddhadeb Bhattacharjee's Government came under heavy criticism for police action against demonstrators in Nandigram in East Midnapore. He was criticized not only by opposition parties (such as the Trinamool congress, Party of Democratic Socialism, Bharatiya Janata Party, Communist Party of India (Marxist–Leninist) Liberation, Communist Revolutionary League of India and others) and other Left Front coalition allies like Communist Party of India, Revolutionary Socialist Party (India) and Forward Bloc, who threatened to back out from the ministry on this issue, but also by his mentor and the state's former chief minister, Jyoti Basu. On March 15, 2007 Basu criticized Bhattacharjee for failing to restrain the police in Nandigram. Bhattacharjee expressed regret for the shootings, but claimed that he permitted police action because Nandigram was an "area where there had been no rule of law and no presence of an administration for not one, two or 10 days but for two-and-a-half months, and many hundreds of villagers left Nandigram, and took shelter in a state relief camp outside Nandigram." Actually Buddhadeb Bhattacharjee declared that land in Nandigram won't be acquired by ordering the Nandigram notification to be torn apart. Still police were not allowed to enter Nandigram. Roads were dug up, preventing administration from entering the area. The CPI(M) declared that they were totally behind Bhattacharjee and had drawn up "plans" to placate his critics in the Left Front. His government was also criticized by Left supporters for failing to protect the Left party workers (including his own party CPI(M)) who came under assault from political opponents - both right wing and ultra-left wing Maoists during the post-Nandigram turmoil until the end of 7th Left Front Government. Later life Despite his calls to be relieved of party responsibilities, Bhattacharjee was retained as a member of the politburo and the central committee in the 20th party congress, organised at Kozhikode in 2012. He was relieved of his posts on the Politburo and Central Committee at the 21st party congress, organised at Vishakhapatnam in 2015. The party congress elected him as