A 24-month Nifty-linked market-linked debenture from Abans (Series 166, ISIN INE01PK07110). If the Nifty ends at or above its initial fixing level, you earn 145% of the index gain up to a 35% move, so the return is capped at 50.75%. If the Nifty ends below the initial level, principal is returned with no coupon.