detained under the National Security Act for allegedly trying to circulate Pakistan-printed Indian currency notes in Ramanathapuram district and some other parts of the state last month, police said.
Police said on the recommendation of SP Mayilvahanan the four--- Marx, Robert, Murugan and Yasser Arafat--had been detained under NSA by District Collector Nandhakumar.
Murugan had allegedly brought the fake currency notes from Sri Lanka and had attempted to circulate it.
Counterfeit notes were seized from the gang members.
Yasser Arafat was a member of the Sri lankan refugee camp at Dindigul, police said.