iron rule meaning in Hindi

Examples

1. Rayburn also had an iron rule regarding foreign policy : no partisan games.
2. Boyer ruled the entire island with iron rule, ending slavery in Santo Domingo.
3. An iron rule of life is to be careful what you wish for.
4. But I doubt it is as much of an iron rule as that.
5. The defections represented the hardest internal blow yet to the iron rule of Saddam.
6. An iron rule of politics is being tested anew here.
7. But that was nothing compared to the iron rule they imposed on Rwandan refugees.
8. Does " notability " need to be an iron rule?
9. That's only a principle though-it's not a cast iron rule.
10. Suharto imposed an iron rule that lasted three decades.