AIADMK general secretary Edappadi K. Palaniswami on Thursday urged the Tamilaga Vettri Kazhagam (TVK) government to take up, at the earliest, the implementation of the Nadanthaai Vaazhi Cauvery project, which is aimed at rejuvenating the Cauvery river and its tributaries and curbing the mix of of sewage with the river system.