The box of hand grenades had been attached with a wooden frame and was lowered from the drone to the ground with a nylon rope, said police, adding that they recovered it on Sunday evening.
The Punjab Police has already invoked the stringent National Security Act (NSA) against the Khalistan sympathiser.
The explosion took place in the wash room of the second floor of the court complex, said police.
Counting of votes for the bypolls in Delhi, Uttar Pradesh, Punjab, Tripura, Andhra Pradesh and Jharkhand will be taken up on Sunday.
Senior Punjab Police officer Salwinder Singh on Tuesday underwent a lie-detector test in connection with NIA's probe in the terror strike at Pathankot IAF base.
NIA was on Monday allowed by a special court to conduct a lie-detector test on senior Punjab Police officer Salwinder Singh in connection with the Pathankot terror attack probe.
Before being discharged from PGIMER, Punjab Police chief Dinkar Gupta handed over to Singh his son Arshpreet's appointment letter as a constable in the force.
With the setting up of doorframe metal detectors, CCTV cameras, drones and deployment of armed commandoes, a banquet in Delhi has turned into a fortress of sorts for the marriage of gangster Sandeep alias Kala Jathedi with 'history-sheeter' Anuradha Choudhary alias 'Madam Minz' on March 12, official sources said on Monday.
The juvenile was also wanted in the murder of builder Sanjay Biyani on April 5 in Maharashtra's Nanded and the killing of gangster Rana Kandowalia outside a private hospital in Amritsar on August 4 last year,
The ceremony traces its origins to the early 1950s when Major Roberts of the Indian Army developed the unique ceremony of display by the massed bands.
Summary of sports events and persons who made news on Tuesday
The duo were planning targeted killings in various north Indian states on the directions of Khalistan movement leaders sponsored by Pakistan's Inter-Services Intelligence, they said.
Landa currently resides in Edmonton, the capital of Alberta in Canada, and is a member of Babbar Khalsa International.
An NIA spokesperson said several digital devices, including mobile phones, SIM cards and memory cards, along with incriminating documents like pamphlets of the proscribed Naxal outfit were seized during the searches.
A scheduled wedding, taking place between two alleged gangsters -- Anuradha Choudhary alias 'Madam Minz' from Rajasthan and Sandeep alias Kala Jathedi from Haryana -- is being discussed in police circles.
The Delhi Police has made a strategic plan to avert any incident knowing Sandeep's notoriety and his previous records, the sources said.
Constables Anand Oraon and Sunder Singh have been awarded the PMG for thwarting smuggling bids by armed smugglers along the India-Bangladesh international border in West Bengal.
While Singh slammed Khattar for stopping farmers from moving towards the national capital, terming it as 'totally undemocratic and unconstitutional', the latter told the Punjab chief minister to stop 'inciting innocent farmers'.
Security forces tightened their cordon around a forest area in the higher reaches of Doda district on Tuesday evening following an encounter with hiding terrorists, officials said.
The Jammu and Kashmir administration on Saturday sacked six government employees, including five policemen, for their 'deep involvement in anti-national activities', officials said.
A route often used by drug smugglers was apparently followed by terrorists to infiltrate into the border state of Punjab and unleash the deadly attack on the Pathankot IAF base.
The NIA on Monday registered a case to probe the conspiracy of Pakistan-based terrorist group, believed to be Jaish-e-Mohammed, behind the strike at the Indian Air Force base in Pathankot in Punjab.
The STF team received specific input regarding the movement of the accused in Bahadurgarh.
The surprising part was that seven of his personal security officers were youngsters, who had joined his drug de-addiction centre for rehabilitation, the officials said, adding that during their stay there for treatment they had been imparted training.
Amardeep Singh, 22, a resident of Brampton, Surrey, and Abbotsford areas of Canada, has been charged with first-degree murder and conspiracy to commit murder.
The gangster-politician was booked in 65 criminal cases ranging from murder to extortion and was elected an MLA five times on the tickets of different political parties.
Army has also been alerted and there is a heightened vigil, police said.
Even though the NIA claims that more than 90 per cent of cases charge-sheeted have ended in conviction, the figure is likely misleading. To date, very few cases investigated by the NIA have resulted in a completed trial, points out former CBI joint director Navneet Rajan Wasan.
Uttar Pradesh, which is set to witness game-changer elections, and four other states will go to polls simultaneously, most likely in February-March next, commencing shortly after the presentation of the Union Budget on February 1.
The Khalistan sympathiser, who is yet to be nabbed, escaped the police's net in Jalandhar district on March 18, switching vehicles and changing his appearance.
Following are some of the terror-related incidents that have taken place in Punjab between 2001 and 2016.
Most political leaders in Punjab have come out in the open to oppose him, unlike the early 1980s when political leaders were scared of speaking against Bhindranwale, observes Sudhir Bisht.
Radical preacher Amritpal Singh, who is on the run following a police crackdown, has been maintaining close links with Pakistani intelligence agency Inter-Services Intelligence (ISI) and some terrorist groups based abroad, official sources said on Saturday.
As tight security measures were put in place across Punjab, officials on Sunday said that checking of vehicles has been intensified at various places while paramilitary along with state police force has been deployed in Kotkapura, where Bittu's body was brought from Nabha in the morning.
A group of four-five 'Nihangs' (Sikhs armed with traditional weapons and dressed in loose blue top) were travelling in a vehicle and they were asked to stop at a vegetable market by the Mandi board officials at around 6.15 am, police said.
The bandits not only looted cash, they also killed two home guard jawans, assaulted and injured bank staff and threatened to kill customers.
Determined not to be arm-twisted into delaying the execution, he decided to hold a late night hearing at his residence. In the pitch blackness of the night, the original verdict was upheld. The next morning, on 9 October 1992, General Vaidya's assassins were hanged until death.
The state police has so far arrested 112 supporters of Amritpal.
The incident took place when the policemen went to arrest some Nihangs (Sikhs armed with traditional weapons) in Sultanpur Lodhi in a case registered against them, said a senior police official over the phone.
Panjwar, 63 was involved in drug and weapons smuggling and was designated as a terrorist under the Unlawful Activities (Prevention) Act in July 2020.