Rima buys a financial asset from the RBI. This financial asset is an instrument of short-
term borrowing. He has bought it because he doesn’t want to take risk and wants an assured
return. This instrument is a promissory note. It is highly liquid. The instrument is also known
as zero coupon bonds. On this instrument, it is written T-91 Based on the above case study,
Identify the financial asset indicated in the above case .elaborate why this instrument is called
as zero coupon bonds and mention what are functions of these instruments and why this is
called as T-91?