Beijing is the capital of China. It is one of the most populous cities in the world, with a population (as of 2013) of 21,150,000.
You cannot truly control where people move. If the state's capital city is attractive, full of jobs, beautiful scenery, affordable, etc. then the capital will most likely be the most populous. However, if there are more attractive cities in the state, then people will move there more than to the capital. Most state capitals are not the most populous cities in the state.
The most populous is Toronto, followed by Montreal, then Calgary. Ottawa, the capital, is the fourth most populous.
Olympia is the capital, Seattle, Spokane Tacoma & Vancouver are the next largest/most populous cities in Washington state.
Cheyenne is the capital of Wyoming.Cheyenne is the capital and most populous city in Wyoming.
Buenos Aires is the capital and most populous city of Argentina.
Buenos Aires is the capital of Argentina.Argentina
The most populous city in Canada that is neither the national nor a provincial capital would be the city of Montréal. With an estimated population of 1.6 million people, Montréal is Canada's second-largest city. Other densely populated cities in Canada that are not capital cities include Hamilton, Calgary and Vancouver.
Uttar Pradesh is the most populated state in India. New Delhi is the capital of India and is from one of the most populated cities.
Harare is the capital and most populous city of Zimbabwe.
Budapest is the capital and the most populous city of Hungary.
Harare is the capital and most populous city of Zimbabwe.