IndiGo
IndiGo owns this hop alongside Air India Express's Kerala network — which does not extend to Chennai — and BluChip has no award chart: redemptions track the live fare at ₹0.40–0.60 per BluChip, minimum 500, taxes cash-only. Useful only to bleed an expiring balance onto a fare you'd have paid anyway.
Estimate IndiGo BluChip is revenue-linked ~Rs0.50/pt; ~= typical one-way IndiGo economy fare / Rs0.50 for ~322 mi - a rupee offset that moves 1:1 with the live fare. Own-metal only, no partners.
Feed it: 12,600 HSBC Reward Points (1.5:1 via Accor Live Limitless (ALL)) · 42,000 Axis EDGE Reward Points (5:1) · 25,200 HDFC Reward Points (3:1 via Accor Live Limitless (ALL))