Dear aspirant !!

Hope you are doing great ! The British were able to take control of India mainly because India was not united. The British signed treaties and made military and trading alliances with many of the independent states that made up India . The British were very effective at infiltrating these states and gradually taking control..

Expansion of British Rule under Lord Wellesley ( 1798 –1805): The next large-scale expansion of British rule in India occurred during the Governor-Generalship of Lord Wellesley who came to India in 1798 at a time when the British were locked in a life-and- death struggle with France all over the world.

Hope it helps you !!

Thanks