This event marked the culmination of decades of planning and organisation towards a London mosque to serve the needs of east London South Asian Muslim lascars and other workers. The event was organised by the Jamiat-ul-Muslimin and attended by approximately 300 people, including several soldiers from the Indian Company of the Pioneer corps in the charge of Lieutenant C. S. K. Pathy, and representatives from a range of Muslim countries. Sir Hassan Suhrawardy, Chairman of the Executive Committee, gave a welcome speech which was followed by the official opening ceremony performed by Hassan Nachat Pasha and prayers led by Sheikh Hafiz Wahba, Minister of Saudi Arabia. Sir Ernest Hotson, Honorary Secretary of the Executive Committee, spoke on the origin and development of the London Mosque Scheme, and Said Amir Shah and Ahmaddin Qureshi spoke on behalf of the Jamiat-ul-Muslimin. Copies of a booklet entitled 'The Millat of Islam and the Menace of "Islamism"' written by C. Rahmat Ali of the Pakistan National Movement were distributed. There were also some non-Muslims from the South Asian community present, including C. L. Katial.

In the wake of the First World War and demobilization, the surplus of labour led to dissatisfaction among Britain’s workers, in particular seamen. This was arguably the key factor that led to the outbreak of rioting between white and minority workers in Britain’s major seaports, from January to August 1919. Along with African, Afro-Caribbean, Chinese and Arab sailors, South Asians were targeted because of the highly competitive nature of the job market and the perception that these minorities were ‘stealing’ the jobs that should belong to white indigenous British workers. The housing shortage due to a lack of materials and labour during the war exacerbated the situation. The issue of ‘aliens’ taking jobs and houses from white workers was raised in the House of Commons. Further, as Indian seamen were hired at a considerably lower rate than their white counterparts and had to tolerate much poor working and living conditions, they were blamed by unions for undercutting the wages of white workers. Of course, racism, and specifically the fear of miscegenation, also motivated the hostility towards these settlers.

During the months of racially motivated violence in 1919 there were violent attacks on minority workers, resulting in five fatalities, as well as vandalization of their homes and properties. South Asians suffered somewhat less than black or Chinese workers as they were not regarded as such direct competition for jobs and housing; most remained within the navy and within their subsidized accommodation rather than seeking alternative employment and accommodation. However, a number of incidents involving South Asians have been traced. In May 1919, the Strangers’ Home for Asiatic Seamen in West India Dock Road was surrounded by a hostile crowd and ‘any coloured man who appeared was greeted with abuse and had to be escorted by the police. It was necessary at times to bar the doors of the Home’ (The Times, 30 May 1919). Newspapers of the time also report the devastation of a Malay boarding house and the shop of one Abdul Satar in Cardiff (Visram, p. 199).