Buy Now Pay Later mechanism is a kind of a short-term loan (credit) that we borrow from e-lending businesses to buy products online.
You can make purchases on the website without paying at the time of checkout. Later, you will have to make payments in instalments until the price of the product or service is fully paid.
Credit is available at most e-commerce websites such as Amazon, Flipkart and Myntra for a wide range of products and services at no interest.

Example:
Some popular e-lending firms that allow you to shop online through a simpler process are Lazypay, Simpl, Zest etc.