Indian coins r mainly produced in 4 cities
The production in city puts an identification mark under the yr of issue.
Coins produced in:
1.Delhi - have a dot
2.Mumbai - have a diamond
3.Hyderabad - have a star
4.Kolkata - Nothing beneath the year
Isn't it amazing? Most of us don't kow this.Nw put ur hand inside your pocket/ wallet/purse and check out!!