Chennai: MPs of the All India Anna Dravida Munnetra Kazhagam (AIADMK), led by Lok Sabha deputy speaker M.Thambidurai, on Tuesday handed over a memorandum to the Prime Minister’s Office to constitute the Cauvery Management Board (CMB) quickly.

“We handed over the memorandum to the prime minister’s secretary. Cauvery Management Board will be constituted quickly," said Thambidurai.

The Central government on Monday asked the Supreme Court to modify the court’s earlier orders asking the Centre to form a CMB.

“The decision to form the CMB is Parliament’s prerogative and the court cannot ask us to do so," attorney general Mukul Rohatgi told the court.

The ruling AIADMK, the opposition DMK and other political parties in Tamil Nadu on Monday accused the Centre of “betraying" the state by seeking modification of a Supreme Court order asking it to constitute the CMB.

“BJP’s (Bharatiya Janata Party) stand is an attempt to win the upcoming elections in Karnataka," said Thambidurai. The assembly election for Karnataka is scheduled for 2017.

Meanwhile, Tamil Nadu chief secretary Rama Mohan Rao has written to Shashi Shekhar, secretary to the ministry of water resources, river development and Ganga rejuvenation, to withdraw the application in Supreme Court seeking modification of the order on constituting CMB.

Tamil Nadu is unable to understand what caused the “sudden reversal" in the Centre’s stand, said chief secretary Rao.

“In the circumstances, I request you to kindly take action to withdraw the interlocutory application filed by the government of India forthwith and constitute the Cauvery Management Board on or before 4th October, 2016, as directed by the Hon’ble Supreme Court in its Order dated 30.9.2016 and render justice to Tamil Nadu," Rao said.

However, on Monday a new resolution was passed by the Karnataka legislature to release water for irrigation to farmers in the state, some of which will flow to Tamil Nadu. Though the new resolution did not explicitly mention the neighbouring state, it implied that some of the released water—at least 3,000 cusecs a day—will go across the border.