This is a good technique for a sitar sound that i found works almost alot.
1) Tune yr guitar to the most middle eastern notes(harmonic minor) available, or anything else you want, depending on what your gonna play.
2) Get a preferably metal object and slide it in between your 1,2,3,4 or whatever number of pickups you have, i use a thick allen wrench with a large plastic handle(it was something i found in my toolbox), Sliding this in between pickups will bring all of the notes in your tuning up a couple of steps, so prepare.
3) PLAY. depending on a lot of things you will get the nice buzzing sound of a sitar
