Security was tightened in Maoist dominated south Odisha districts like Malkangiri, Koraput, Nabarangpur, Rayagada, Gajapati following killing of Mallojula Koteshwar Rao alias Kishenji in West Bengal by security forces. According to police sources patrolling was intensified with extra watch on areas bordering Andhra Pradesh and Chhatisgarh. It is feared that the ultras may resort for some violent act as retaliatory measure after the murder of their top leader in West Bengal.