A special investigation wing arrested two more persons, including a woman, in connection with the murder of Dendrakula Vellalar Kootamaippu founder president C. Pasupathi Pandian here on Monday night.

Those arrested are M. Muthupandi (37) of Karattazhaganpatti and P. Nirmala (49) of Nandhavanapatti, sister of a head constable.

The police produced them before judicial magistrate A.P. Latha at her residence on Tuesday morning. The case was posted for hearing on February 7. Nirmala was lodged in Tiruchi prison and Muthupandi in Madurai prison.

Muthupandi, councillor of the 18{+t}{+h}ward of Dindigul panchayat union, was a member of Tamil Nadu Makkal Munnetra Kazhagam, founded by John Pandian and former district president of Bahujan Samaj Party. Initially, he was an aide of John Pandian and later joined the BSP when Pandian was arrested and imprisoned for various offences. When Pandian was released from jail, Muthupandi renewed his friendship with him.

The police suspect that Muthupandi might have harboured prior enmity with Pasupathi Pandian.

The police said Muthupandi had introduced Nirmala to prime suspect Subhash Pannaiyar in Chennai two-and-half-years ago. Both went to Chennai to meet Pannaiyar. Later, Nimala was allegedly monitoring the movement of Pasupathi Pandian and his supporters. The police claimed that she went to Pasupathi Pandian's house posing as someone needing his help in settling a dispute and surveyed the place.

Nirmala reportedly met Pannaiyar three days before the murder in Palani. She also hired a house for the accused at Nandhavanapatti.

Meanwhile, supporters of Pasupathi Pandian stuck posters in Dindigul demanding the arrest of the real accused behind the murder.

Two accused – M. Arumugasamy (29) and J. Arulanandhan (26) - had surrendered before the Valliyur Court in Tirunelveli district. Four out of five suspects identified by the police were arrested so far. Fourteen suspects including prime suspect Subhash Pannaiyar, brother of late Venkatesa Pannaiyar of Tuticorin, were identified.

The police have constituted five special teams to nab others.

Pasupathi Pandian was murdered by an unidentified gang near his residence at Nandhavanapatti recently.