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This bass is a 21" scale, with a piezo saddle mounted in an adjustable bridge. The soundhole is just for looks. The strings are metal-wound Kalas. The fretboard is cut out of the ugliest piece of wood I ever received. For such a small neck, I managed to cut around most of the ugly, and the result isn't half bad.
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The key is the shallow angle between the saddle and the string. A proper guitar bridge has a sharp break between the saddle and the string. This shallow angle causes the classic sitar buzz. This is a very easy part to make from any decently hard wood. A scrap of fretboard blank is ideal. A little experimenting, and you will get it. Then you can convert any guitar into a "sitar".
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