What are 'Non Convertible Debentures' ?

Definition:

 Debentures are long-term financial instruments which acknowledge a debt obligation towards the issuer. Some debentures have a feature of convertibility into shares after a certain point of time at the discretion of the owner. The debentures which can't be converted into shares or equities are called non-convertible debentures (or NCDs).

Description: 

Non-convertible debentures are used as tools to raise long-term funds by companies through a public issue. To compensate for this drawback of non-convertibility, lenders are usually given a higher rate of return compared to convertible debentures.

Credits : EconomicTimes