India has accused Pakistani troops of firing guns and mortars on at least 50 Indian border posts overnight in Kashmir, calling it the most serious ceasefire violation between the nuclear-armed neighbours in a decade.
Indian troops returned fire, but one guard was killed and six were injured by a shell fired at the Arnia post in the Jammu region, he said.
At least 100 civilians were being moved from homes in the villages of Arnia and Ramgarh near the frontier, local Indian police said.
While nearly 200 smaller violations of the 2003 ceasefire agreement have been reported this year, Mr Yadav called the latest skirmishes the most serious in a decade.
Both sides have acknowledged an increase in the number of cross-border attacks since the Pakistani and Indian prime ministers met for their first face-to-face meeting last month in New York and agreed on the need to reduce tensions in the disputed region.
Pakistani military officials have said that, over the last week, "unprovoked firing" by Indian forces had killed a Pakistani soldier and a civilian. Ten other civilians were wounded, the Pakistani officials said.
Most recently, the Pakistani officials said Indian forces shelled Dhamala village near Sialkot yesterday. Pakistani soldiers returned fire and no casualties were reported.
India and Pakistan fought wars in 1947 and 1965 over their rival claims to the Himalayan territory, and have regularly sparred over the heavily militarised Line of Control that divides the territory between them.
Serious fighting also erupted in 1999, when the Pakistani army and Pakistan-backed rebels occupied mountain tops on the Indian side in the eastern Kargil region of Kashmir.
He did not elaborate, but local politicians who want to separate from India's administration said Mr Abdullah's comment's amounted to "war-mongering" against Pakistan.
India's home minister Sushilkumar Shinde was in the Jammu region yesterday to meet troops and security officials after reported skirmishes last week.