The body of the deceased, Bharat, was recovered from Venkatapuram-Cherla road at around 5 am with two bullet injuries and a letter purportedly written by the ultras, Bhadrachalam ASP N Prakash Reddy told PTI over phone.
The letter, in Telugu, claimed that Bharat was an Area Committee Member who was earlier operating in Chhattisgarh.
The letter alleged that Bharat had started passing on information to police, and hence he was killed, the ASP said.
"We are verifying the contents of the letter and also the identification of the man," Reddy said.