Police and security forces patrolled the streets of the hills and kept a tight vigil at entry and exit points.
Internet service remained suspended for the 25th day.
The Gorkha Janmukti Morcha (GJM) will hold rallies in various parts of the hills later in the day, party sources said.
An Army column, comprising around 50 personnel, was deployed in Kalimpong on Monday night, defence sources said.
Two columns of the Army have already been positioned in Darjeeling and Sonada on Saturday after large-scale violence and arson took place in those areas.
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