More than 3,000 Sikhs gathered in London's Trafalgar Square on Sunday calling for an independent territory in India. Protesters are seeking an independence referedum in 2020 for a sovereign Sikh state they call Khalistan. Many held banners calling for an end to "Indian occupation." The protest was organised by the US and Canada-based group Sikhs for Justice. A simultaneous counter-protest of around a hundred people gathered nearby to call for India to remain united.