Answer : 4. "पड़ोसी राज्यों पर शिवाजी द्वारा लगाया गया एक कर"
Explanation :

In practice, Chauth was often a tribute paid by Hindu or Muslim rulers to appease the Marathas, so that they would refrain from causing disturbance in their province or from intruding into their district. The Marathas claimed that in return for this payment, they protected them from attacks by others.