After britain conquered bengal step by step , by conquering the feudal states such as mysore , and maratha until the conquest of the pindari in 1818 , britain gradually established a system of subsidiary alliances , which built up the supreme dominant status on the states .

1757年英国逐步占领了孟加拉后，通过对迈索尔、马拉塔等地方封建土邦势力的征服到1818年英国征服平达里人为止，英国逐渐与土邦建立了藩属体系，确立了对土邦的最高统治地位。