Davinder alias Kala was nabbed on Sunday evening from Haryana's Fatehabad.
The government will leave no stone unturned to bring the perpetrators of this heinous crime to justice, said Mann.
Two men arrested for firing outside Bollywood superstar Salman Khan's residence in Mumbai had conducted a survey of his farm house at Panvel in adjoining Raigad district four days before the shooting incident, police said on Thursday.
The Delhi Police has made a strategic plan to avert any incident knowing Sandeep's notoriety and his previous records, the sources said.
All three agreed to have the proceedings heard in English and each of them nodded that they understood the charges of first-degree murder and conspiring to murder Nijjar, the report said.
Moosewala's family, including his parents, were inconsolable as they sat beside the body at their home.
The video, captured by a CCTV camera inside the high-security jail, showed the attackers descending from the first floor by clinging to bed sheets using them as a rope and then barging into Tajpuriya's cell on the ground floor to attack him.
Delhi police sources on Sunday said a team of the crime branch in a joint operation with the Rajasthan police nabbed the duo from Chandigarh's Sector 22.
The Punjab police had sought the red corner notice against Brar on May 30 in connection with two old cases, officials said.
After identifying the duo, the police used human and technical intelligence to track them.
Another man who had gone to meet his daughter studying in a coaching institute there was also hit by bullets and died.
A few days ago, the Crime Branch had taken jailed gangster Tillu Tajpuriya -- one of the prime conspirators -- in its custody to grill him about Gogi's killing.
The NIA had registered three cases last year following information suggesting that terrorist outfits and their sympathisers abroad were operating as members of organised criminal gangs active in the northern states of India for targeted killings and violent criminal acts.
Once a wanted criminal with a reward of Rs 7 lakh on his head, Sandeep from Sonipat got a six-hour parole for his wedding from a Delhi court.
'The prowess with which they executed the shootings unmistakably bear the imprint of someone who has had professional training.'
Gogamedi, the chief of Rashtriya Rajput Karni Sena, was shot dead in Jaipur on Tuesday by unidentified bike-borne criminals.
'In the end, officials in India will be thrown to the wolves, quietly released a couple of years down the road and we'll never hear about them again.'
The Delhi police special cell has arrested three persons, including two shooters, in connection with the killing of popular Punjabi singer Sidhu Moosewala, officials said on Monday.
Those covered under the raids also included gangsters involved in the murder of Punjabi singer Sidhu Moosewala.