Feature request from napsterv, posted on GitHub Aug 26, 2014
Change Rs. to ₹.
Comment from ilol, posted on GitHub Aug 28, 2014
@napsterv, thanks.
Comment from vpelipenko, posted on GitHub Jan 29, 2015
Internal ticket: MAGETWO-27719
Comment from piotrekkaminski, posted on GitHub May 10, 2016
This is currently not a priority seeing many stores use Rs. It will be considered with other i18n/l10n issues.