He tried, but failed, to assassinate Punjab's chief minister,. Darbara Singh.  He was arrested and tortured then murdered by the Punjab police, but they covered up their crime by claiming he had died in a police encounter.  See this link for a review of his life.  See this link for a video of his relatives and associates commemorating his life and martyrdom. 

Watch this video commemorating the short life of a Sikh activist, Harpreet Singh, who campaigned tirelessly for the establishment of Khalistan, so much so that he gave his life to it.   See also these videos:  link link link link

Rana Singh had a heart condition the treatment of which he put on the back burner preferring to instead exert his energy and time to furthering the establishment of Khalistan. 

His devotion for establishing Khalistan is inspirational to all Sikhs who want justice for Sikhs.  His life and devotion to the cause fill his parents and those who knew him with pride.

The real terrorists are the

• politicians who have denied justice for Sikhs, introducing laws that deny Sikhs basic human rights and the right to free-speech without fear of reprisals
• the police who have murdered thousand upon thousands of innocent Sikhs with impunity,
• the judges who have presided over miscarriages of justice that have incarcerated thousands of Sikhs and denied them the right to a fair trial and other basic human rights.

A true democracy gives its citizens the right to self-determination, to speak-out against injustice without fear of retribution.  The Indian government, past and present, have denied these rights to Sikhs and has persecuted Sikhs. It is therefore just and right that Sikhs should seek a separate state where they may live without fear and as equals with all citizens.

Watch this Satluj TV video of RP Singh describing the horror of being unjustly arrested and tortured for no reason by Saini and his goons.  Saini operated the torture instrument that sent electric currents through RP Singh and he ordered his tugs to set upon RP Singh and beat him.

Listen to this podcast in which Darshan Singh tells of his journey to America at the request of his parents to keep him alive and away from the murderous clutches of the infamous Punjab police (who had nabbed him three times but each time his family had managed to get him released).  He says, if I understood his words in Punjabi, that Badal must never be forgiven.  He also says that those days should not be described as dark days but golden days.  I am not sure why he says that - perhaps it was because Kharkus and other Sikhs were avenging the persecution and genocide of Sikhs in the aftermath of 1984 and compared to the current state of Punjab,, those times were golden days.  He also says, I think, that the widespread use of drugs is under the control of the state and politicians.  He mentions the infiltration of thousands of outsiders into Punjab as a strategy by the central government to ensure votes are always for the government's puppets and to therefore ensure genuine Punjabis will never be able to achieve the majority of votes and take power away from the government.  He asks the Sikhs abroad to return home, at least some of the ex-pats if all of them cannot return to the Punjab, because the demographics of the Punjab.

Listen to this podcast by Satluj TV in which Gurnam Singh Jusraa of Ropar village gives his eye witness accounts of innocent young Sikhs being taken by police and murdered.  Listen to his denunciation of Badal 

Watch this August 2024 podcast of an interview of Baldev Singh Sirsa in which he exposes the distortion of Sikh history in SGPC books.  Satluj TV has this summary to accompany its podcast:
"Dirty talk about Guru Sahabana in SGPC books
History has been distorted
Children were also taught wrongly in books of Punjab Board
Sikh thinker Baldev Singh Sirsa has been raising his voice for many years"
...
This article and video published by Sikh Siyasat Bureau in May 2018 on the same subject, has this to say:

Amritsar: Sikh activists heal a protest march in Amritsar on Monday (22 May) against distortion of Sikh history in books published by a Nagpur based private publisher. Baldev Singh Sirsa, president of Lok Bhalai Insaaf Welfare Society said that the books were part of Hinduva conspiracy to distort the historical facts to further the Hindutva agenda in the sub-continent. Alleging RSS had behind the controversial books, Baldev Singh Sirsa questioned the silence of Shiromani Akali Dal (Badal) over this issue citing its’ alliance with the Bhartiya Janta Party, which is considered to be political offshoot of the RSS.
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Baldev Singh Sirsa had this to say to Sikh Siyasat Bureau in May 2018:
"Baldev Singh Sirsa said that the “Nagpuri books” are full of misinformation, lies and Hindutva propaganda about Sikh Guru and the Sikhs. He said that such distortion of Sikh history can not be tolerated at any cost"