[3] He was popular amongst rural Sikhs who considered Brahma a Robin Hood-like figure and had also been credited with reading gurbani 18 hours a day.

What is known is that he was born in 1951 in Sandhu Jat sikh family of village Brahampur near Tarn Taran Sahib.

[7] One of Avtar Singh's first exploits was attacking CRPF, BSF, and Indian army convoys.

[10] In Baler Avtar Singh Brahma and fellow militants surrounded a CRPF jeep.

[7][10] Avtar Singh next attacked a CRPF patrol party at Bhikhiwind killing 1 Sub-Inspector and two jawans.

In July 1986 Operation Mand was launched to capture Avtar Singh and his fellow militants.

[13] About 30 companies of security forces along with multiple helicopters, bulldozers, and mechanised boats were deployed and used for the Operation which was conducted in a over 240 square kilometre area.

[4][15] After Avtar Singh and fellow Tat Khalsa members managed to escape.

He said at a cabinet meeting, that innocent Sikh youth and women were being harassed and tortured by the security forces.

Once reinforcements arrived around an hour later they smashed their way into homes and searched them in the village trying to find Avtar Singh.

[27][25] Avtar Singh Brahma vowed to get revenge in a letter and punish those responsible.

Following this the Kharkus led by Brahma killed multiple CRPF soldiers in other attacks throughout the day.

Bhullar attacked a Gurdwara in Sri Muktsar Sahib as part of Operation Blue Star.

10 KLF members with sub machine guns and pistols had broken into Bhullar’s home and killed him in a burst fire.

Brahma claimed that they had broken KLF’s rules and began to kill innocents as well as extorting people.

[29] Under Avtar Singh senior KLF members launched an attack in September 1987.

[31][32] On 1 November 1987, Avtar Singh Brahma claimed responsibility for the killing of 2 CRPF jawans in an ambush the day before near Kabirpur.

[33] On 6 November 1987, Brahma killed Deputy Superintendent of Police (DSP) Tara Chand.

[36][37] SSP Brar and his junior, SP (HQs) KRS Gill, were both killed while jogging at Patiala's National Institute of Sports.

Brar was killed instantly by a bullet hitting his temple, "sending his skull flying".

[37] Gill attempted to flee to a police jeep, but was injured with bullets in his head and back.

Brar had cleaned the Babbar Khalsa out of Patiala, but in doing so had been accused of committing extrajudicial executions.

[40] On 22 January 1988 BJP Punjab Vice-President Khushi Ram Sharma was shot dead with 4 bullets in Ludhiana by 2 Sikh on scooters.

Avtar’s Lieutenant General Budhsinghwala claimed responsibility in a letter on behalf of KLF.

[41] On the same day 6 KLF members armed with AK-47s shot dead 12 people in a park in Barnala.

Avtar’s Lieutenant General Budhsinghwala claimed responsibility in a letter on behalf of KLF.

[17] At a SGPC meeting at Ludhiana University KLF members under Budhsinghwala snuck their way in using fake ids.

[48] On 19 June 1988, under Brahma and other KLF members gunned down the head of the Punjab Shiv Sena, Ramkat Jalota.