Why did the british want control of india, and how did they lose control?

They also wanted India to have its own government, in which men like them would become MPs. The Indian National Congress first set out these ideas in 1885. ... Also, India was so valuable to Britain that they were reluctant to lose too much control. By the end of the First World War in 1918 British rule was still secure.

do you have a list of sources to choose from?

a countries leader should be motivated by the common good of the country.