The protesting BJP members, led by party state president Sarbananda Sonowal, demanded that the Indo-Bangladesh border in Assam should be sealed immediately and fencing should be electrified.
Sonowal said nearly 20 people were killed in recent violence in Rabha Hasong Autonomous Council areas and a CBI inquiry should be conducted to find out and arrest those behind it.
He also said the proposed move to hand over a portion of Assam's land to Bangladesh under an agreement signed by New Delhi with Dhaka should be stopped.