Anyone can invest in a Market Linked Debentures. However, since they usually have a high face value, they are better suited for HNIs. They can be bought from distributors or investment banks who offer these products on a commission. They are usually issued with a face value of Rs 10 lakh via an offline process. You can invest in Market Linked Debentures through BondsIndia by clicking on this link - https://www.bondsindia.com/market-linked-debenture.html