I've already worked through how NRPN works with the Shruthi-1. Looks like the good user who is working with this synth will upload his layouts.
Description of the Shruthi-1:
The Shruthi-1 is a hybrid digital/analog monosynth. Its hardware design is deceptively simple, but the sonic range is wide: sometimes grungily digital like a PPG-Wave, fat and funky like a SH-101, videogame-y like a Commodore 64, weird and warm like an ESQ-1 ; but more often than not, truly original.