The force's also lost two of its buildings. However, no casulty has been reported yet.
The sources said the officers mess also suffered some damage.
"Two builings have collapsed though there has been no casualty. The officers mess too has been hit. The road outside the battalion headquarters has cracked. We have launched search and rescue operations," the source said.
The quake measuring 6.8 on Richter Scale with its epicentre on the Sikkim-Nepal border shook northeast and northern parts of the country, including the national capital, on Sunday evening.