What is an example of an unpopular law in pre- independence India?​

The Anarchical and Revolutionary Crimes Act of 1919 or the Rowlatt Act.

Explanation:

The Rowlatt Act allowed the British  government to imprison people without due  trial for a variety of actions such as criticizing or impugning the British government. The Act was in direct retaliation to a surge in Indian nationalists who sought revolution against the British.

i believe it is capitalists.  

the american civil war was not caused   by slavery but by economic factors.