The one-page Urdu posters, which are claimed to be on behalf of Al-Badr Mujahideen, were seen pasted at several places in Mendhar town on Saturday. The posters were immediately seized by police, the officials said.
While the elderly woman was killed in heavy shelling by Pakistan in Poonch district of the Jammu region, two civilians were injured in Tangdhar sector of north Kashmir's Kupwara district, they said.
The arrested persons were planning to carry out a grenade attack on a temple at the behest of their Pakistani handler to disturb peace and communal amity in the district.