1) Attached please find six articles on the police investigations on the assassination of Harchand Singh Longawal.
2) The excerpt of an Indian radio broadcast released by the British Broadcasting Corporations (BBC) reports on the arrest of Gurmail Singh of Phagwara, "the main conspirator in Sant Harchand Singh Longowal's murder case" (BBC Summary 26 Aug. 1986).
Additional information on this subject is currently unavailable to the IRBDC.
3) Information on this subject is currently unavailable to the IRBDC. However, the following information on the arrest, acquittal or death of a person charged with the murder of Harchand Singh Longowal whose first two names are Nirmal Singh could be noteworthy.
Reuters reports the arrest of two "top extremist" Sikhs: Kanwaljit Singh Sultanwind and Nirmal Singh Numma (18 Oct. 1989). Nirmal Singh Numma was shot dead while trying to flee, according to the source.
Elaborating on the trial of three Sikhs for their alleged participation in the murder of the Indian Army Chief of Staff "who ordered a military assault on Amritsar's Golden Temple," the United Press International refers to the acquittal of Nirmal Singh "at the end of the lengthy closed trial held within a prison" (21 Oct. 1989).
A Reuters release reports on the kidnapping of a Romanian diplomat by a militant Sikh organization (the Khalistan Liberation Force) in October 1991 (12 Oct. 1991). The kidnappers demanded the release of five militant Sikhs, two of whom had been convicted of killing the former Army Chief while another one had been a suspect in the murder of Harchand Singh Longawal (Ibid.).
Reuters later reported the release of a kidnapped Romanian diplomat by his Sikh kidnappers (27 Nov. 1991, 2). The source cites the Indian Home Minister as stating that no deal was made for the release while a police official referred to "some unspecified behind-the-scene discussions" (Ibid.).
Additional information on the above subject is currently unavailable to the IRBDC.
Bibliography

BBC Summary of World Broadcasts. 26 August 1986. "Main Conspirator' in Longowal Murder Case Arrested." (NEXIS)

The Los Angeles Times. 21 August 1985. "Sikh Leader in Punjab Accord Assassinated." (NEXIS)

Manchester Guardian Weekly. 1 September 1985. "Extremists Sikhs Held in Longowal Murder Hunt." (NEXIS)

Reuters. 27 November 1991. "Indian Executives Get Police Protection After Militant Threat." (NEXIS)

. 12 October 1991. "Sikh Militants Threaten to Chop Up Romanian Diplomat." (NEXIS)

. 18 October 1989. "Top Sikh Militant Swallows Cyanide after Capture." (NEXIS)

. 26 August 1985. "Militant Sikh Leader Held in Longowal Murder Probe." (NEXIS)

. 22 August 1985. "Six Men in Plot to Kill Longowal."
(NEXIS)

The United Press International. 21 October 1989. "Death Sentence Given to Sikh Extremists." (NEXIS)

. 11 September 1985. "Police Arrest Militant Sikh." (NEXIS)

. 28 August 1985. "Militant Sikhs to Boycott Elections." (NEXIS)

Attachments

BBC Summary of World Broadcasts. 26 August 1986. "Main Conspirator' in Longowal Murder Case Arrested." (NEXIS)

The Los Angeles Times. 21 August 1985. "Sikh Leader in Punjab Accord Assassinated," pp. 1-3. (NEXIS)

Manchester Guardian Weekly. 1 September 1985. "Extremists Sikhs Held in Longowal Murder Hunt," pp. 1,2 (NEXIS)

Reuters. 27 November 1991. "Indian Executives Get Police Protection After Militant Threat," pp. 1, 2. (NEXIS)

. 12 October 1991. "Sikh Militants Threaten to Chop Up Romanian Diplomat," pp. 1, 2. (NEXIS)

. 18 October 1989. "Top Sikh Militant Swallows Cyanide after Capture." (NEXIS)

. 26 August 1985. "Militant Sikh Leader Held in Longowal Murder Probe," pp. 1, 2. (NEXIS)

. 22 August 1985. "Six Men in Plot to Kill Longowal." (NEXIS)

The United Press International. 21 October 1989. "Death Sentence Given to Sikh Extremists," pp. 1, 2. (NEXIS)

. 1 September 1985. "Police Arrest Militant Sikh." (NEXIS)

. 28 August 1985. "Militant Sikhs to Boycott Elections," pp. 1, 2. (NEXIS)