The explosions took place within a short interval when the BSF personnel had gone to the area near MPV-31 village to remove posters and banners put up by Maoists asking people to boycott the ensuing polls, Malkangiri Superintendent of Police Akhileswar Singh said.
The blasts took place minutes after the BSF party had completed its operation and was leaving the site, police said.
While no BSF personnel was hurt in the incident, two cows were killed as the improvised explosive devices (IEDs) went off when they apparently stepped over them, Singh said.
The incident is being viewed as a move by the Maoists to disrupt the poll process.
