While 11 accused had been awarded life imprisonment, one was handed down three years imprisonment by a Special Additional Sessions Court in Kozhikode on Jan 23.
Earlier, the accused had filed appeals challenging their convictions.
During the consideration of the appeals, government had informed the court that it will be filing appeal for enhancement of sentence.
Chandrasekharan, a CPI(M) rebel, was brutally hacked to death at Onchiyam on May 9, 2012. Three CPI(M) local leaders are among the convicted.
