Why RBI isn’t targeting Rupee’s price band, but inflation — the ‘impossible trilemma’ explained

The Indian rupee crossed Rs 90 to the dollar in early December 2025, marking its weakest level on record. Why did the RBI allow the currency to slide instead of stepping in to defend it, and why are policymakers insisting they are not worried? The answers lie in a hard economic constraint that leaves central banks with fewer choices than they appear to have.