Police said the four were part of a group of six people who planned the incident.
Two more Myanmarese soldiers entered Mizoram after militia group People's Defence Force (PDF) overran their camp in the neighbouring country's Chin state, a police officer said on Wednesday.
Police used tear gas shells to disperse the mob as it was believed that it would target other properties.
Without making two-thirds of the country's population a development partner, India's prosperity is impossible, the Congress leader added.
The IMD has warned of heatwave to severe heatwave conditions in parts of West Bengal, Odisha, Bihar, Jharkhand, Andhra Pradesh, Telangana, Karnataka and Uttar Pradesh during the next five days.
Eight Congress MLAs skipped the proceedings, defying a party whip.
Five police personnel have been placed under suspension in connection with the incident in which a 29-year-old journalist was killed in police firing in Manipur, official sources said on Monday. The sources said a three-member enquiry committee headed by Principal Secretary, Home, Suresh Babu has been constituted to probe Sunday's incident and the panel would submit its report to the government for further action within a week.
A powerful grenade suspected to have been thrown by terrorists was on Wednesday found in the compound of the heavily guarded Manipur secretariat, official sources said.
Shops, markets and business establishments were closed while very thin attendance was reported in government offices due to the 24-hour strike called by the Kuki Students Organisation.
For the first time in the three-week-long agitation, police opened fire on agitators in Imphal East and West districts.
"Hum kya chahe - Azadi. Kashmir ki Azadi. Manipur ki Azadi. Nagaland ki Azadi (We demand freedom. Kashmir's freedom. Manipur's freedom. Nagaland's freedom)," one of the posters said.
Shah said for the first time in India's history, Modi prioritised security, peace and development in the northeast and as a result of it, the region is now rapidly heading on the path of peace and development.
At least 11 militants have been killed and three women civilians injured in separate incidents of firing in three districts of Imphal East, Thoubal and Chandel in Manipur, official sources said.
It was not yet known whether Manipur's Agriculture Minister K Ranjit and Deputy Inspector General of Police Jathang were injured in the attack that took place at Tingkhanphai in Chandel district.
Here is an explainer on the functioning of the seven-year-old body.
A security source informed that the bomb was planted in a moped in the area that is close to a barrack of Manipur State Police Commandos and a camp of Assam Rifles, both of which are engaged in counter-insurgency operation in the state.
An IED went off at about 9 am near off a BSF camp at Moirangpurel area, injuring a seven-year-old girl Tinoi in Imphal East district.
The chief of the outlawed Kuki Revolutionary Army (KRA) of Manipur died under mysterious circumstances at his brother's rented house on Monday morning.
The abductors have demanded a ransom of Rs30 lakh for the release of J Lumkim, an official said.
A jawan of the Manipur Rifles was injured in the firing which took place when the chief minister stepped out of the helicopter at the Ukhrul helipad
These jawans belong to Manipur SAP Company, IRB, a Gujarat Police release said in the night.
The curfew was imposed this noon and covers Porompat and Sawombung subdivisions of Imphal East district, said an order issued by the district magistrate. It will continue till further directions.
The BJP, which has two MLAs in the MDA government, backed the Cabinet decision.
The incident became grist for media attention for people scanning 'cow' along with a Muslim name, regardless of the fact that in Manipur Muslims occupy a specific socio cultural and political positioning with the community having assimilated with the majority Meiteis, says Chitra Ahanthem.
Militants hurled a powerful grenade at the private house of Manipur Panchayati Raj Minister Mohammed Alaudin in East Imphal district, official sources said on Tuesday. No one was injured in the attack as the grenade failed to explode, they said.
The son of a Manipur Member of Assembly was arrested on Tuesday in connection with the incident in which a Colonel-rank Defence Public Relations Officer and five others were held for allegedly transporting illicit drugs estimated at over Rs 24 crore for smuggling to Myanmar, said the police.
Hindu outfits Bajrang Dal and Vishwa Hindu Parishad are staging protests across the national capital against the Haryana violence.
A colonel of the Indian Army and five others were on Sunday arrested by the Manipur police in Chandel district after they were allegedly caught carrying illicit drugs valued at Rs 15 crore meant to be smuggled out to Myanmar, in one of the biggest such seizures in the state.
Though the identity of the insurgents was not known, police said it suspected that they belonged to the banned United National Liberation Front.
Two militants were on Tuesday killed in an encounter with police personnel in Bishenpur district and another militant of ZUF arrested in Tamenglong district of Manipur.
Militants exploded a powerful bomb at the private residence of Manipur Assembly Speaker Maniruddin Shaikh minutes after he left the house at Lilong area in Thoubal district on Wednesday.
The Manipur government has set itself on course to arm villagers as special police officers in the worst insurgency-affected pockets of the state.
Imam has been booked under Section 13 (unlawful activities) of the Act in the case, said his counsel advocate Mishika Singh. The police had earlier charged Imam with sedition, alleging his speech promoted enmity between people that led to riots.
Manipur Chief Minister Okram Ibobi Singh's residence was attacked by the proscribed People's Revolutionary Party of Kangleipak on Tuesday.
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.
Six persons, including an army personnel, were killed and four others injured in separate violence in militancy-hit Manipur, official sources said on Tuesday.
Amidst the investigation into the security breach in Parliament -- which I emphasise, should be done -- let us not forget the grievances raised (this is, of course, assuming the protestors were there to put the spotlight on said grievances and not for any other purpose). For questionable laws, unemployment, Manipur, authoritarianism; all these are contemporary worries among sections of the public, points Shyam G Menon.
The Supreme Court on Friday extended by two weeks the protection from coercive action it has granted to four members of the Editors Guild of India (EGI) in connection with two first information reports (FIRs) lodged against them in Manipur for allegedly promoting enmity between different groups.
At least 18 army personnel were killed and 11 injured on Thursday when an insurgent group ambushed their patrol in Chandel district of Manipur.
The Army has asked telecom companies to realise the security implications of such malpractices.
