Amazing indian currency

There are too many amazing things that you should know about Indian currency and they are as
★In between 1954 and 1978 there            was 5000 and 10000 currency notes in the market.
★Till the starting of 20th century rupee was the currency of Oman, Kuwait, Qatar, Behrin,Uganda, Kenya and many more.
★500 and 1000 rupee Indian currency notes are banned in Nepal.
★If you have 51% part of any note than you can exchange it with new branded note from any bank.
★ In 1917 Indian rupee  was very strong against U.S. dollar.At that time one Indian Rupee= 13 U.S. dollar.
★ There should be a art of any indian place or thing on an Indian currency note.
★ One rupee note has been printed by the ministry of finance.
★ Its very easy to recognise That which coin has been moulded where??
Mumbai moulded coin has diamond,  Hyderabad moulded coin has a star, Noida moulded coin has a circle and Kolkata moulded coin has no sign on his top or bottom