Progressions in C — Sitar
Every Western chord the key of C owns, charted on CGCGC — a reference layer, not this instrument's own harmony.
C major harmonises to C – Dm – Em – F – G – Am – B°; C minor to Cm – D° – Eb – Fm – Gm – Ab – Bb. Each chord links to its Sitar voicings — a Western harmony reference laid over an instrument whose own music has no chord progressions at all.
Set C as Sa and the thaats engine answers a different question: not which chords harmonise it, but which of the ten classification frames could hold a raga built on it. That is the honest sitar question; this page answers the Western one instead.