Yellow = editable. Live fetch attempted from FBIL on every refresh; if blocked, falls back to these values — update manually from FBIL's derivatives page if so.

Base case = spot + forward premia (covered interest parity), a real traded price. RSI adjustment applies only to the 20-35 band (n=31, the one oversold zone with a usable, consistent sample) — a genuine backtested bounce, not an assumption. Overbought bands (70-85) historically showed trend continuation, not reversal — the opposite of textbook RSI theory, consistent with USD/INR's structural depreciation bias — so no symmetric "overbought discount" is applied. Bands with fewer than 10 historical episodes are shown for reference only and never drive the adjustment. This is a professional-judgment tool, not a guarantee.