A bird's eye view of Securitisation process:
Suppose you are a FI who provide 2 wheeler's loans.
Till now you have created 1 crore loans. From which you are going to get interest as a reward.
Now to the installment will fall due slowly. And you are now in need of cash to supply more loans in the market in anticipation of rising 2 wheeler's demand.
You are cash starved as you have already projected in 1 crore loans.
So you pack these 1 crore receivables and sell to an investment company who is willing to take risk. These installment now will be collected by the investment company.