Here is the font required to make rupee symbol and 3d model of complete autocad .dwg of model shown in image below.
this is the converted text to line drawing of symbols, note that you need not make these symbols using line, polyline or spline tools (the common draw tools) just type the text and use "TXTEXP" command to convert text into 2d line drawing
this is complete rendered image of symbols
watch this video for a detailed tutorial with each step explained clearly
for more such videos you can follow http://www.sourcecad.blogspot.com