The annual survey by the Sikh Network, involving 4,500 respondents from across the UK, also found that the community continues to face discrimination and hate crimes.
"This report contains the network's findings and is intended to assist government departments, other public bodies and political parties to understand existing trends and developments of the British Sikh community.
"19 out of 20 Sikhs reject being described as 'Indian' or 'Asian'; 93.5 per cent of Sikhs would welcome the inclusion of a separate ethnic tick box for Sikhs in the Census 2021; and more than 94 per cent of Sikhs would welcome a Statutory Code of Practice for the five Ks [kesh, kara, kanga, kachha and kirpan] and Sikh turban," the survey concludes.
"92 per cent think there should be an independent public inquiry to establish the full facts about UK government involvement in the attack on Sri Harmandir Sahib in 1984," the report says.
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It says Sikhs in Britain continue to face discrimination and hate crimes with almost one in five having encountered discrimination in a public place over the past year and one in seven directly experiencing workplace discrimination.
The report found that Sikhs who wear religious iconography or clothing are most likely to experience abuse, with men in turbans more vulnerable than women.
The most common places where discrimination is experiences are airports and public transport.
The survey also notes that hate crimes against Sikhs are "wrongly" recorded as Islamophobic incidents by police, leading to a distortion of data.
The UK is home to over 432,000 Sikhs, according to the 2011 census, making up 0.7 per cent of the population.