As many as 11 police informers were killed by Naxals in the first six months of this year in Chhattisgarh which witnessed 245 incidents of red-rebel violence.
According to Home Ministry statistics, informers were killed mostly in rural areas of Chhattisgarh where Naxals continue to have dominance.
However, there have been improvement in the security situation in Jharkhand, Bihar, Odisha and Maharashtra where incidents of Naxal violence has come down significantly.
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Similarly, there has been a fall in casualties in Naxal violence -- from 177 in first six months of 2014 to 111 in 2015.
184 Naxals have surrendered till June 15 this year while 176 extremists surrendered in the same period last year.
In Chhattisgarh, 82 Maoists have surrendered so far this year while last year only 35 extremists had given up arms.
In Jharkhand, security forces killed 19 Maoists till June 15 this year in comparison to just two in the corresponding period in 2014.
As many as 177 Maoists were arrested by security forces in Jharkahand in comparison to 142 in the same period last year.