The husband of Tamil Nadu Chief Minister Jayalalithaa's estranged aide Sasikala was arrested on Saturday in a land grabbing case, said the police.
A team of police from Thanjavur arrested M Natarajan and took him to that town.
He was arrested on a complaint filed by a person from a village near Thanjavur.
Natarajan is the third person from Sasikala's family to be arrested after Jayalalithaa expelled her and several others in December for reported interference in state administration and party affairs.
Earlier, Sasikala's brother Diwakaran and a relative Ravanan were arrested in connection with criminal cases.
