I did not know that was a thing. Though, maybe I am uninformed but I can't think of both how and why this is a thing. First, a quick search on ISRO's wiki page it has a handful of launches every year, and assuming the chances of the rocket debris landing on a particular country is likely single digits a year if at all that is, what's the point of a fine, just to make money? or is it supposed to incentivize countries to invest into research of rocket debris trajectories? Or perhaps deter countries from launching rockets? Second, what happens when a space agency disputes an incident/fine, who is the final authority? What happens on repeat offenses, steeper fines? What if the fine is not paid? Is it a problem worth tensions between nations with sizable bilateral trade?