Khaleelul Rahman was arrested today. Earlier, three persons - Balaji, Baskar and Murughiah Pandian had been arrested in connection with the case, a city police release here said.
On a complaint of Sivasuryan to the Chief Minister's special cell that some persons had grabbed 66 acres of government land in suburban Pallikaranai using forged documents, a case was registered in the Central Crime Branch, the release said.
Baskar started a trust to use the land in its name and the other two accused persons were involved in forging documents, it added.