The monarchy dominated society, trade and economic opportunities, and in consequence, political institutions became weaker and the economy declined. ... Colonialism did not, however, merely impact the development of those societies that did the colonising. Most obviously, it also affected the societies that were colonised.
Indian society underwent many changes after the British came to India. In the 19th century, certain social practices like female infanticide, child marriage, sati, polygamy and a rigid caste system became more prevalent.
