Srinagar, May 11 -- Seven persons, including a senior Jammu and Kashmir government official, a Junior Commissioned Officer (JCO) of army and a BSF Sub Inspector , were killed and over 20 others injured as intense mortar shelling by Pakistan hit the Jammu region on Saturday, officials said.Raj Kumar Thapa, Additional District Development Commissioner, Rajouri, and his two staff members were seriously injured when an artillery shell hit his official residence in Rajouri town, the officials said.They were rushed to the Government Medical College where Thapa succumbed to his injuries, they said.Subedar Major Pawan Kumar, a resident of Himachal Pradesh, laid down his life when a Pakistani artillery shell exploded near his post in Krishna Ghati...