Srinagar, Nov. 5 -- Security was beefed up in Srinagar on Monday, a day after a grenade attack near Sunday Market in Tourist Reception Centre left 12 people injured."After yesterday's attack, the security apparatus has been beefed up. We have heightened security, especially since the assembly session began today," an official said.The checkpoints were set up across the city, especially at all the entry and exit points, and random frisking and checking of people and vehicles were undertaken.Mobile vehicle checkpoints were also established while security forces were undertaking area domination exercises and maintaining a strong vigil in the sensitive areas of the city.The deployment of police and paramilitary was increased around vital inst...