India, Dec. 10 -- Four more Maoists, including a cadre involved in the 2009 Madanwada ambush that killed 29 security personnel, surrendered in Chhattisgarh's Kanker district on Wednesday, a senior police officer said.

"The four, among them two women, collectively carried a reward of Rs.23 lakh. They surrendered before senior police and Border Security Force (BSF) officials under the Poona Margem (from rehabilitation to social reintegration) initiative," Kanker senior superintendent of police (SP) I K Elesela said in a statement.

The initiative, launched by the Bastar range police, has emerged as a "long-term effort for peace building and social reintegration" across the seven districts of the region, Elesela's statement added.

Police o...