The KLO militants were produced before Chief Judicial Magistrate of Jalpaiguri Subrata Mukerjee.
The police prayed for 14-days police custody of the two militants which was granted by the judge.
The two top KLO militants were arrested by the Special Operation Group of the police when they were riding a motor cycle at Lichubagan village yesterday.
Fifty SIM cards, two pistols and seven cell phones were seized from the two, linked with several subversive activities including last December's Jalpaiguri cycle-bomb blast in which five persons were killed.