The Jammu district administration asked authorities of schools and colleges to remain closed on Monday as a precautionary measure, officials said.
"All schools, colleges, and academic institutions, both private and government, are advised to remain closed as a measure of caution," Deputy Commissioner of Jammu Sushma Chauhan said on Sunday night.
This step has been taken in view of the situation in Jammu and Kashmir following a multi-fold increase in the security deployment due to threat perception, officials said.
Earlier, security across Jammu region was strengthened with additional deployment of paramilitary forces, including Rapid Action Force (RAF), in various districts especially in the twin border districts of Poonch and Rajouri, they said.
Late night on Sunday, Section 144 was imposed across Srinagar and former chief ministers of Jammu and Kashmir Omar Abdullah, Mehbooba Mufti and Jammu and Kashmir People's Conference president Sajad Lone were taken into preventive custody.
After the Jammu and Kashmir government curtailed the Amarnath Yatra and asked tourists to leave the valley on Friday, anxious residents continued to throng markets to stock essentials and serpentine queues were visible outside shops and fuel stations.
Leaders of the mainstream Kashmiri political parties held an all-party meet on Sunday, centered around the prevailing tensions in the valley, NC chief Farooq Abdullah in a subsequent press brief accentuated on the crucial aspects that were discussed in the meeting.
The meeting was held at NC chief Farooq Abdullah's residence and was attended by NC leader Omar Abdullah, political rivals PDP chief Mehbooba Mufti, J&K People's Conference president Sajad Lone and others to discuss the situation in the state.
Following the meeting, Abdullah said, "It was unanimously resolved that all the parties would be united in their resolve to protect and defend identity, anonymity and the special status of Jammu & Kashmir and Ladakh against all attack and onslaught whatsoever."
(With PTI inputs)