It became part of the Church of South India after Indian independence in 1947, going on to be the Cathedral of the Karnataka Central Diocese in 1961.

[6] When it began as a garrison church in 1808 of the Madras Army of the East India Company, it had a seating capacity of 400.

[8] After the church was damaged in fire in 1923, the congregation temporarily worshipped at the St. Andrew's Kirk, Cubbon Road, till St. Marks's was rebuilt in 1927.

[8] The military colours of the 77th Moplah Rifles infantry Regiment, after disbandment (1907) are displayed on the west wall of St. Marks.

[7] There is also a memorial plaque for Lt.-Col Sir Walter Scott, 2nd Baronet, who died at sea in 1847, and was the nephew of Scottish writer Sir Walter Scott[10] The cathedral is a beautiful colonial style, modelled on the lines of the St Paul's Cathedral, London, with a dome, semi-circular chancel and roman arches.

The stained glass on the west facing window was created by the architect of St. Dunstan's Society, England and cost INR 4500[13] The cathedral is an architectural marvel, but it is not something which happened overnight.

The Brass lectern (eagle with spread wings on the globe) was presented by some planters of Mysore in 1903, in memory of Harry Alexander Campbell and Montague Beaden Follett of Lumsden's Horse Regiment who died in the Boer Conflicts of South Africa.

The other parts were made from teak, and built in Bangalore, supervised by Herbert Norman, agent of the British firm in India.

The restoration involved replacement of all the bellows, pipes, small trumpet and the blower, and converting keyboard to electric.

The church also sends young people on study missions to Jaffna (Sri Lanka), Jharkhand and Hardwar.

George Trevor[19]) of St. Marks Cathedral also helped establish the St. Paul's Church, on Old Poor House Road, Bangalore Civil and Military Station, for the Tamil speaking believers.

[20] The church was built in the premises of the St. Paul's Tamil medium primary school (established in 1835, continued to function till 1900).

[7] First day of every month-Holy Communion 7 am Sundays A Tuck's Post card, published in 1930, could not be unfortunately displayed here, due to licensing issues.