Natarajan had surrendered before a local court on December 6 after being on the run for 15 months.
He was placed under suspension a day after two private news channels had on July 31, 2005, showed him in compromising positions with a tribal woman. The 1975 batch IPS officer had been in judicial remand ever since he surrendered on November 6.
The woman had filed an FIR charging Natarajan with rape.