tourism, enabling the Darjeeling Himalayan Railway section to obtain two additional locomotives and proposing the Indian Railway Catering and Tourism Corporation Limited. She also commented that India should play a pivotal role in the Trans-Asian Railway and that rail links between Bangladesh and Nepal would be reintroduced. In all, she introduced 19 new trains for the 2000–2001 fiscal year. In 2000, she and Ajit Kumar Panja resigned to protest the hike in petroleum prices, and then withdrew their resignations without providing any reasons. 2001 West Bengal election In early 2001, after Tehelka exposure of Operation West End, Banerjee walked out of the NDA cabinet and allied with the Congress Party for West Bengal's 2001 elections, to protest the corruption charges levelled by the website against senior ministers of the government. Minister of Coal and Mines, January 2004 – May 2004 She returned to the NDA government in September 2003 as a cabinet minister without any portfolio. Along with Mamata, her party colleague Sudip Banerjee was also inducted in the Vajpayee ministry. On 9 January 2004 she took charge as Ministry of Coal and Mines. During her short term as the minister of coal and mines, the government disallowed the sale of the National Aluminium Company. She held the Coal and Mines portfolios till 22 May 2004. 2004–2006 election setbacks In Indian general election of 2004 her party aligned with the Bharatiya Janata Party, however, the alliance lost the election and she was the only Trinamool Congress member to be elected from a parliamentary seat from West Bengal. Banerjee suffered further setbacks in 2005 when her party lost control of the Kolkata Municipal Corporation and the sitting mayor Subrata Mukherjee defected from her party. In 2006, the Trinamool Congress was defeated in West Bengal's Assembly Elections, losing more than half of its sitting members. On 4 August 2006, Banerjee hurled her resignation papers at the deputy speaker Charanjit Singh Atwal in Lok Sabha. She was provoked by Speaker Somnath Chatterjee's rejection of her adjournment motion on illegal infiltration by Bangladeshis in West Bengal on the grounds that it was not in the proper format. Singur, Nandigram and other movements On 20 October 2005, she protested against the forceful land acquisition and the atrocities perpetrated against local farmers in the name of the industrial development policy of the Buddhadeb Bhattacharjee government in West Bengal. Benny Santoso, CEO of the Indonesia-based Salim Group,