However, the whereabouts of Amritpal and his associate Papalpreet Singh remain unknown.
Amritpal Singh was arrested by the Punjab police at around 6:45 am from village Rode after absconding for more than one month.
A multi-tier security arrangement has been made at the Central Jail in Dibrugarh where Singh will be lodged.
The Punjab Police on Monday said it has invoked the stringent National Security Act (NSA) against five people linked to radical preacher Amritpal Singh's 'Waris Punjab De'.
Amritpal and Papalpreet had been on the run since March 18 when the Punjab Police launched a crackdown against the Khalistan sympathiser and his aides.
The curbs to be remained in Tarn Taran, Ferozepur, Moga, Sangrur and Amritsar's Ajnala sub-division and a few areas in Mohali till Thursday noon.
According to officials, security has been tightened in Assam.
The main accused in the rocket propelled grenade attack at the Punjab police headquarters in Mohali was apprehended from Mumbai on Thursday, DGP Gaurav Yadav said.
The self-styled Sikh preacher managed to give police a slip after changing his vehicle on Saturday when police had launched a crackdown against him and his outfit 'Waris Punjab De'.
Amid the crackdown on 'Waris Punjab De' chief Amritpal Singh and his aides, four accused were detained in Ludhiana on Wednesday, and were sent to jail, informed the police.
IGP Gill revealed that the Waris Punjab De chief's last location was in Haryana.
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.
Twenty pilgrims, including 15 women, were killed and 50 injured when an over-loaded mini truck rolled down a 100 feet deep gorge near village Nari on the Hoshiarpur-Dharmsala road in the wee hours on Thursday.
Papalpreet Singh, the mentor of absconding Waris Punjab De (WPD) chief Amritpal Singh who was caught by the police in Amritsar district, was brought to Dibrugarh in Assam, over 2500 km away from the northern state, and lodged in the central jail along with seven others of the pro-Khalistan outfit on Tuesday.
The Punjab Police has already invoked the stringent National Security Act (NSA) against the Khalistan sympathiser.
Security forces took out flag marches at several places including Ferozepur, Bathinda, Rupnagar, Faridkot, Batala, Fazilka, Hoshiarpur, Gurdaspur, Moga and Jalandhar in a show of strength.
Some residents of village Nizampur claimed that the man disrespected the Nishan Sahib and tried to run away but was caught after a chase.