Original sentence: <ref>{{cite book|last=Singh|first=Pritam|title=TFederalism, Nationalism and Development: India and the Punjab Economy|url= July 2010|year=2008|publisher=Routledge|isbn=9780415456661|pages=44}}</ref> In addition, the CBI is considered responsible for seizing historical artifacts and manuscripts in the Sikh Reference Library before burning it down.Operation Blue Star (,  (blyū sṭār)) 3– 6 June 1984 was an Indian military operation, ordered by Indira Gandhi, then Prime Minister of India, under the pretext of removing Sikh separatists from the Golden Temple in Amritsar.The activists, led by Sant Jarnail Singh Bhindranwale, were accused of amassing weapons in the Sikh temple.The operation was carried out by Indian army troops with tanks and armoured vehicles
Edited sentence: <ref>{{cite book|last=Singh|first=Pritam|title=TFederalism, Nationalism and Development: India and the Punjab Economy|url= July 2010|year=2008|publisher=Routledge|isbn=9780415456661|pages=44}}</ref>.Operation Blue Star (,  (blyū sṭār)) 3– 6 June 1984 was an Indian military operation, ordered by Indira Gandhi, then Prime Minister of India, in order to remove Sikh separatists from the Golden Temple in Amritsar.The activists, led by Sant Jarnail Singh Bhindranwale, had ammassed weapons in the Sikh temple.The operation was carried out by Indian army troops with tanks and armoured vehicles in absence of any defenses inside the temple