Patnaik, a Communist Party of India (Marxist) leader, breathed his last at around 2pm today at a private hospital in the State Capital. He was admitted to the hospital yesterday, family sources said.
The Communist leader was elected to Lok Sabha from Bhubaneswar in 1977, 1989, and 1991.
Odisha Governor Prof. Ganeshi Lal, Chief Minister Naveen Patnaik and several senior politicians across major political parties in the State expressed grief over the death of veteran CPI (M) leader Sivaji Patnaik.