A religious congregation of "Nirankaris" was being held at when it came under attack.
The attack comes three days after the state police was put on high alert following an input by its counter-intelligence wing, suggesting that some Jaish-e-Mohammad (JeM) terrorists were in Punjab and planning to move to Delhi. "We will not let the forces of terror destroy our hard earned peace", Captain Singh tweeted.
Last month, the Punjab Police had arrested three Kashmiri students of CT Institute of Engineering Management and Technology, located on the outskirts of Jalandhar, who were allegedly were associated with Ansar Ghazwat-ul-Hind (AGH). "Though the state had been hit by a series of cases of targeted attacks since 2015/16, this was the first attempt, in a long time, to disturb the peace in the state through indiscriminate killings", he said.
Punjab Chief Minister Amarinder Singh announced Rs 5 lakh each as ex-gratia to the kin of those dead. Around 200 people were inside the complex at the time of the blast, Inspector General of Police (Border) Surinder Pal Singh Parmar said.
Three people were killed and 20 were injured in a bomb blast inside Nirankari Bhavan at Adliwal village near Rajasansi in Amritsar on Sunday.
Police said that initial reports suggest that two motorcycle-borne assailants threw a grenade at a gathering of Nirankari sect, who were performing religious ceremony in the Nirankari Bhawan at Raja Sansi village.
The father of a woman said she was threatened by two men with a gun at Amritsar's Nirankari Bhawan.
Netanyahu becomes Israel military affairs minister
If Bennett's eight MPs also leave the coalition, Netanyahu will lose the majority. The government must choose an election date within three to five months.
The attack took place inside the Nirankari Bhavan at Adliwal village near Amritsar's Rajasansi, close to the worldwide airport, police said. "Have asked the district administration to extend all help", the chief minister said in a tweet earlier.
He has also asked officials to strengthen security at all Nirankari Bhavans in the state.
While politicians and leaders reacted to Sunday's attack, AAP leader in Punjab HS Phoolka caused a stir with his statement accusing Army Chief Bipin Rawat of being "behind the attack".
Punjab was on an alert following an input that a group of six to seven JeM terrorists were reportedly in the state, possibly in Ferozepur area.
Punjab, which was divided between India and Pakistan when they split after independence in 1947, has a history of sectarian violence.
Punjab CM Amarinder Singh condemns Amritsar Attack, announces ex-gratia of Rs 5 lakh for the kin of deceased and free treatment for the injured. He said he was deeply anguished by the deaths.
State Congress chief Sunil Jakhar also offered his condolences.