Day count convention for debt securities clarified: Actual/Actual leap-year denominator and holiday payment scheduling maintained. If a coupon payment date falls on a holiday, payment may be made on the next working day while the original coupon schedule remains unchanged; postponed payments do not alter subsequent scheduled coupon dates or accrual periods. For leap years where February 29 falls within the tenor, a 366-day denominator under the Actual/Actual day count convention applies for the whole one-year period regardless of coupon frequency. Interest and redemption payments must be made only on days when the money market is functioning in Mumbai.