[1] Through this system, the Indian Princes of these Native States were assured of protection from internal or external aggression, through deployment of company troops.
The Resident was a senior British official posted in the capital of these Princely States, technically a diplomat but also responsible for keeping the ruler to his alliance.
The continuation of Princely rule allowed the British to concentrate their resources on the more economically significant areas under their direct control and also obscured the effective loss of independence of these States in their external relations.
[3] The physical manifestation of this was the Residency itself, which was a complex of buildings and land modified according to the aesthetic values of the suzerain power (Britain).
The Nawab of Oudh, one of the richest native princes, paid for and erected a splendid Residency in Lucknow as a part of a wider programme of civic improvements.