dasturi
A commission or duty charged by an agent; a kickback.
In all dealings between natives there is invariably a species of extortion, a sort of dustoory, which is given in all money transactions.
Where it comes from
From Hindustani دستوری / दस्तूरी (dastūrī), from Classical Persian دستوری (dasturi).
Adapted from the Wiktionary entry dasturi (CC BY-SA 4.0).