The Maoist problem has taken a turn for the worse in Chhattisgarh over the past year, senior Congress leader and former Union Home Minister P. Chidambaram said on Thursday, in the wake of recent incidents of violence triggered by the ultra-left rebels.

"Although some progress was made in Chhattisgarh in controlling Maoism or Naxalism, in the last year or so things have deteriorated," Chidambaram told the media.