Concept:The chronological sequence of treaties and conventions during the First Anglo-Maratha War determines the correct order.
Explanation:The Treaty of Surat was signed on 6 March 1775 between Raghunathrao and the British East India Company at Bombay.
This treaty ceded Salsette and Bassein to the British in return for support against the Peshwa.
The Treaty of Purandar was signed on 1 March 1776 between Nana Phadnavis and the Calcutta Council.
It granted Raghunathrao a pension but no promise of support, and the British retained Baruch and Salsette.
The Convention of Wadgaon was signed on 13 January 1779 after the British defeat in the First Maratha War.
It ended British efforts to install Raghunathrao as Peshwa and forced them to surrender territories.
The Treaty of Salbai was signed on 17 May 1782, ending the First Anglo-Maratha War and restoring the status quo.
Thus the correct order is: Treaty of Surat (4), Treaty of Purandar (2), Convention of Wadgaon (3), Treaty of Salbai (1).
Answer:Option A:
4−2−3−1