Khalistani propagator Amritpal Singh, who surrendered before Punjab Police on Sunday, will be flown to Assam's Dibrugarh Central Jail where nine of his associates are lodged. Here's a look at why the high-security prison is being used to house hardliners.
Amritpal managed to evade arrest for more than a month, which was proving to be a major embarrassment for the Punjab police that had launched a crackdown against the radical preacher and his aides on March 18.