Amid a general alert across the metropolis, a thick security blanket has been thrown in and around Arthur Road Jail where a special court will pronounce its verdict in the Mumbai terror attacks case tomorrow.
Both the special court and the cell of Ajmal Kasab, the lone Pakistani gunman captured during the attacks, are inside the high-security prison.
Checkposts have been set up at strategic points along the Sane Guruji Marg which leads to the prison near Saat Rasta in south Mumbai, police sources said.
Patrolling has been intensified and sand bunkers have been erected behind which armed policemen are standing guard round-the-clock.
The road next to the prison has been made one way and registration numbers of all the vehicles passing on that route are being noted down by police.
Since the trial began about a year ago, Kasab has been lodged in a bullet and bomb-proof cell especially designed to protect him from any attack. This cell is connected to the court by a tunnel which no bullet or bomb splinters can penetrate.
The Pakistani gunman is guarded by a 200-strong contingent of Indo-Tibetan Border Police.
The jail is divided into two sections -- one housing the court and Kasab's cell and the other having 11 barracks, a jail hospital and an egg-shaped cell meant for high-profile inmates.