Analysis of information sources in references of the Wikipedia article "भारतीय १० रुपये का सिक्का" in Hindi language version.
One such change is introduction of 'Rupee symbol' in coins in July 2011. An instance of this is the ₹ 10 coins with rupee symbol and the same denomination coin without rupee symbol. Both of them are legal tender and equally good for transactions, though they may look a little different.