Operation Black Thunder is the name given to two operations that took place in India in the late 1980s to flush out remaining Sikh activists from the Golden Temple using 'Black Cat' commandos of the National Security Guards Like Operation Blue Star, these attacks were on Kharku sikhs who were based in the Golden Temple in Amritsar, Punjab.
The first Operation Black Thunder took place on 30 April 1986. About 300 National Security Guards commandos stormed the Golden Temple, the holiest shrine of the Sikhs, along with 700 Border Security Force troops and captured about 300 Sikh militants. The operation, which lasted eight hours, was approved by then Chief minister of Punjab Surjit Singh Barnala of Shiromani Akali Dal.
Operation Black Thunder II (sometimes just referred to as Operation Black Thunder) began on 9 May 1988 in Amritsar and ended with the surrender of the militants on 18 May. The operation was commanded by Kanwar Pal Singh Gill who was the DGP of Punjab Police. Snipers were used in this operation. Compared to Operation Blue Star, little damage was inflicted on the Golden Temple. In what was reported as a successful operation, around 200 millitants surrendered, 41 were killed. Gill stated that he did not want to repeat the mistakes made by the Indian army during Operation Blue Star. This operation was described as a severe setback to the Anandpur Resolution implementation movement. In contrast to prior operations, minimum force was used under full public scrutiny. It is remembered for the free access the news media was provided unlike during Operation Blue Star. The day after the militants surrendered, nine reporters were allowed into the Temple complex.Kirtan was resumed at the Golden Temple on 23 May 1988 after a two-week break during this operation.