They cited disappointment with "hollow" Maoist ideology and their "wrong" policies, according to police.
"The cadres turned themselves in before senior police and Indo Tibetan Border Police (ITBP) officials at the district headquarters," Narayanpur Superintendent of Police Santosh Singh told PTI.
They are identified as Manish Salaam (21), Mandar Korram (30), Peelsai Korram (40), Roshan Padihar (41),Anulal Bhandari (37),Sampat (27), and Chunni Lal Bhandari (38).
He said Salaam, an active member of Maoists' Dandakaranya instructor teamand Antagarh LOS (local operation Squad), had been allegedly involved in the two attacks on police party this year in Narayanpur and the neighbouring Kanker district.
In their statement, thesurrenderedcadres said they are quitting because of the "hollow"naxalideology and the wrong policies like "exploitation of innocent villagers".
The SP said the surrendered ultras will be provided facilities as perthe surrenderand rehabilitation policy of the state government.