New Delhi/Amritsar: British Foreign Secretary William Hague's statement that London did advise New Delhi on planning the deadly attack against separatists in the Golden Temple at Amritsar in 1984, sparked protests by Sikh bodies in India on Wednesday.SAD leader Harsimrat Kaur Badal said that it is an act of treason by then Prime Minister, Indira Gandhi. Denouncing the attack, the head priest of the Golden Temple, Gurbachan Singh, demanded an apology by the UK government. Meanwhile, Shiromani Gurdwara Parbandhak Committee (SGPC), president Avtar Singh Makkar, slammed the UK government for the attack. UK Prime Minister David Cameron ordered a review into the matter last month after the government inadvertently released official papers suggesting that Margaret Thatcher, then prime minister, had sent an officer from the elite SAS special air service to advise India on the raid.