I can't convert rgp to Unicode. Kindly help me
I don't know what RGP font is, but here are some solutions to convert special fonts and typings to Unicode:
http://kandupidi.com/converter/
http://www.snible.org/greek/symb2uni.html
http://www.higopi.com/ucedit/Tamil.html
Maybe they work for your RGP font as well.