Sending money from Bangladesh to India can be really tough for people who are new to online payments. In Bangladesh people use Nagad a lot and in India UPI is one of the popular ways to pay online. The problem is that these systems are in countries and use different money so you cannot usually send money from a Nagad account to a UPI account directly. https://fastexer.com/blog/how-to-exchange-nagad-agent-bdt-to-upi-inr-a-beginner-friendly-guide