Darjeeling (WB), Aug 21 (PTI) Police and security forces today conducted raids in several parts of Darjeeling hills to track those involved in the grenade blast at Kalimpong police station on Saturday night.Also Read - Gorkhaland Vision Intact: GJM Supremo Bimal Gurung Returns After 3 Years in Hiding

The raids were conducted in various parts of the hills including areas which are considered to be the stronghold of the Gorkha Janamukti Morcha (GJM), which is spearheading the two-month long shutdown in the hills, the police said. Also Read - Bimal Gurung Hopes New Modi Government Will Look Into Gorkhaland Demand

Security forces also conducted area domination marches in several parts of the hills. Also Read - Bimal Gurung Says BJP Has Promised to Look Into Gorkhaland Demand

The situation in Darjeeling remained tense as the indefinite shutdown, demanding a separate state of Gorkhaland, entered its 68th day today.

GJM chief Bimal Gurung was yesterday booked under the Unlawful Activities (Prevention) Act (UAPA) in connection with two blasts in the Darjeeling hills on Saturday, where a high alert has been sounded, the police had said yesterday.

A hand grenade was hurled at the Kalimpong police station on Saturday, killing a civic volunteer and injuring two others.

This is published unedited from the PTI feed.