Chauth was a charge under which a state or a territory paid twenty-five percent of its land revenue to the Marathas in return for protection against a foreign aggression. Chauth can be well-compared to the Subsidiary System of alliances, later adopted by Lord Wellesly
Chhabra, G. S. (2005). The Maratha Administration. Advance Study in the History of Modern India (Volume-1: 1707-1803) (p. 62). New Delhi: Lotus Press.