Border Security Force troopers along with Meghalaya Police arrested Prethy M. Sangma and Dina M. Sangma from Kimdegre area in South West Garo Hills.
Police recovered two phones from their possession.
The GNLA, outlawed by the central government, forged an operational alliance with the United Liberation Front of Asom (ULFA) and the National Democratic Front of Bodoland (NDFB), which provided it access to sophisticated arms and ammunition.
GNLA rebels, who number around 100, unleashed terror in three impoverished districts of Garo Hills in the past one year and killed over 50 people, including security personnel.
Updated on: November 21, 2013 7:12 IST
