Question

how did the british destroy the maratha power in the 18th and 19th century

Answer 1

The british,at first disunited them and then they were divided and british defeated the rulers one by one

Answer 2

Hola User___________

Here is Your Answer.....!!!!
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Actually welcome to the concept of History and the Anglo- Maratha war.....

Basically if we start from the earlier centuries ....

☆At the beginning of the seventeenth century, power equations on the West coast had undergone a major change. The Siddi of Janjira, though undefeated and surviving, was much weakened due to the losses suffered by his patrons, the Mughals, in their war against the marathas. ....

☆The Portuguese were on the decline, holding on precariously to their possessions in India by attempting to befriend the British. The Marathas and the British were thus the main powers left in the fray for the mastery of the Western coast 

☆After Shivaji’s death, while the Marathas were fully engaged in fighting the Mughals, the Maratha navy continued to grow thanks to a remarkable Maratha Admiral, Kanhoji Angre. The history of the Maratha navy is synonymous with the history of the Angres till the first half of the eighteenth century. .....

☆The Maratha Empire had partly declined due to the Second Anglo-Maratha War  Efforts to modernize the armies were half-hearted and undisciplined: newer techniques were not absorbed by the soldiers while the older methods and experience was outdated and obsolete.

 ☆The Maratha Empire lacked an efficient spy system, and had weak diplomacy compared to the British. Maratha artillery was outdated, and weapons were imported. Foreign officers were responsible for the handling of the imported guns; the Marathas never used their own men in considerable numbers for the purpose.....

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Hope it helps u......☺