Indian Rupee Sign is proposed at U+20B9 in Unicode: http://std.dkuug.dk/jtc1/sc2/wg2/docs/n3862.pdf
Its designer, Maroor Udayakumar from Tamil Nadu says he had Indian flag in mind during its design phase: http://www.youtube.com/watch?v=8GXPAPzyvGM N. Ganesan
