The militant-brother duo were beaten to death by a mob at Rowmari Garopara area under Rongjuli police station on charge of terrorizing them by demanding extortion money, district Superintendent of Police Nitul Gogoi told PTI.
One of the slain Ultras Babul Momin was wanted by police for indulging in anti-social activities and extortion demands, the SP said.
Stating the other extremist was identified as (Energy) Momin, he said, adding that extortion demand letters and the Meghalaya-based PLFM letter pads were recovered from the slain militants.