• Security rules changed after Parliament breach, only MPs to use main gate. Separate entrances to staff members, and the press. Visitors, when allowed back, will enter from a fourth gate: NDTV
  
• Police suspect involvement of 6 people in Parliament security breach; 4 held, search on for 2 others: Official sources, reports PTI
  
• Visitors' gallery passes stopped, reports NDTV
  
• 2 persons, including woman, who were detained for protesting outside Parliament, arrested for violating prohibitory orders: Delhi Police, reports PTI
  
• All-party meeting on Lok Sabha security breach to be held at 4 pm, according to media reports
• Delhi police cell to probe Parliament intrusion: reports NDTV

In a major security breach on the anniversary of the 2001 Parliament terror attack, two persons on Wednesday jumped into the Lok Sabha chamber from the public gallery during Zero Hour and released yellow gas from canisters and shouted slogans before being overpowered by MPs.

Around the same time, two persons, including a woman, also sprayed coloured gas from canisters while shouting slogans 'tanashahi nahi chalegi' outside the Parliament premises.

All four have been detained by security forces.

Two persons, involved in the Lok Sabha incident, have been identified as Sagar Sharma and Manoranjan. Sharma had come to the visitor's gallery as a guest of Mysuru Lok Sabha member Prathap Simha.

The two jumped into the chamber from the public gallery at around 1 pm. And while one was spotted jumping over the benches, the other was left dangling from the gallery before jumping into the Chamber, according to several MPs present in the House.

BJP member Rajendra Agrawal, who was in the chair, adjourned the proceedings till 2 pm as one part of the Lok Sabha chamber was filled with yellow-coloured smoke.

"Two intruders have been arrested from inside Parliament, two from outside. All their belongings have been seized...The entire matter is being investigated thoroughly," Lok Sabha Speaker Om Birla said when the House re-convened at 2 pm.

With some members raising the issue of the recent threat to attack Parliament, Birla said "What you are referring to, it is not that matter as per preliminary report." While the affiliation of the protestors was not known immediately, US-based Khalistani terrorist Gurpatwant Singh Pannun had recently released a video threatening to attack Parliament on or before December 13.

Birla also called a meeting of MPs from all parties later in the day to address their concerns over the matter.

Members who overpowered the two persons inside the Lok Sabha chamber said,"one of them was saying I am a patriot and came here to protest." Many Lok Sabha members beat up the intruders before handing them over to security.

JD(U) member Ramprit Mandal said the intruders had hidden the gas canisters in their shoes and sprayed yellow-coloured gas in the Lok Sabha chamber.

Mandal, who was near the intruder, said RLP member Hanuman Beniwal and other members overpowered the person.

"One of the two was raising slogans 'Tanashahi nahi chalegi'," Mandal said.

"Suddenly there was a commotion in the House. One person was seen jumping from one bench to another. It was a very tense moment, anything could have happened. I thought, what if he has a bomb or fire equipment in his pocket? It is a serious security lapse," Sudip Bandyopadhyay, Trinamool Lok Sabha leader, said.

"Two people jumped from the public gallery, there was smoke and everyone ran. They have been caught by some MPs and security personnel. One of them is Sagar. He was the guest of Mysuru member Prathap Simha," Lok Sabha member Danish Ali said.

"It is a big security lapse. It is the anniversary of the Parliament attack. This is a matter for probe," said Ali.

Congress member Karti Chidambaram said the two persons pulled out canisters that were emitting yellow smoke. "The smoke could have been poisonous. It is a serious security breach," he added.

"They started advancing and rushing towards the well of the house and they lighted up smoke sticks. Security was compromised," DMK member D N V Senthil Kumar said on X.

"Certainly, there is a loophole. At first, I thought a person might have fallen but when the second person started coming down, all of us became cautious," BJP member Rajendra Agrawal said.

"Home Minister Amit Shah gives big speeches but can't maintain security in Parliament, he must resign," TMC MP Kalyan Banerjee said.

In a post on X, Congress leader Gaurav Gogoi said, "Saw two young men unleash foul smelling yellow coloured gas from canisters inside Parliament gallery. MPs rushed to grab these men. One person was raising some slogans. This raises serious questions on another aspect of the new Parliament building- security." Security has been beefed up in the area following the incident.

Terrorists of the Pakistan-based Lashkar-e-Taiba and Jaish-e-Mohammed outfits attacked the Parliament complex on this day in 2001, killing nine people. After opening the gas canisters that emitted the smoke outside the Parliament building, the two protestors also raised slogans such as "Tanashahi Nahi Chalegi" (dictatorship will not be allowed), "Bharat Mata Ki Jai" and "Jai Bheem, Jai Bharat", police officials said.