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20th June |
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| 1670 | Guru Tegh Bahadhur Ji arrested in Delhi. |
| 1923 | Babu Santa Singh arrested at Tapa Railway Station. |
| 1972 | 20 GurSikhs killed in Gurdwara Sadabarat. |
| 1977 | Parkash Singh Badal became the Chief Minister of the Punjab. |
| 1984 | Major General R.K. Ghoad, announced 4 officer, and 4 JOC, and 92 soliers killed while 287 injured during the bluestar operation. Later Rajiv Gandhi, while addressing a Congress gathering in Nagpur, announced 700 soliers killed and 2400 Sikhs arrested. The actual count as per eye witnesses in thousands. |
| 1984 | Sirdar Harinder Singh Khalsa resigned his position at Indian Embassy, Norway, in protest of Indian Army’s attack on Sri Darbar Sahib and sought asylum along with his family. |