Tamilnadu Chief Minister Ms.J.Jayalalithaa on Monday told reporters that the political parties in the State are united on the Mullai Periyar issue.Talking to reporters in Chennai, Ms.Jayalalithaa said she was yet to get a response from the Prime Minister on deploying CISF protection at the Dam site.On security in the border area of the State, Ms. Jayalalithaa said forces had been deployed from both the states at the border to maintain peace.