The cadres, including four women, turned themselves in before Inspector General (in-charge) Bastar Range Sundarraj P, Collector Amit Kataria and other senior official at Jagdalpur, the district headquarters, Bastar SP Sheikh Arif Hussain told PTI.
Twenty-five of them were active in Kanger Valley under Darbha division of southBastar, which has witnessed several deadly Naxalattacks in the past, while the remaining eight were working in Barsoor area, he said.
Four of the ultras - Dudhi Goche, Phoolram and two women - Jogi Madkami, Dudhi Gonche - were carrying reward of Rs 1 lakh each on their heads, the SP said.
The SP said in their statement, the rebels expressed disillusionment with the "hollow" ideology of the Naxal movement and said this prompted them to leave the path of violence and join the mainstream.
Moreover, they were impressed with the provisions of surrenderand rehabilitation policy of the state government, the police officer added.
He said Rs 10,000 in cash was given to each of the surrenderedrebels as immediate financial aid and they will be rehabilitated as per the government policy.