vinsat

Does this or any other tool avoid detection of tampering, keeping the structure/properties intact?

They should look at how India is trying to break this with both UPI (bank to bank transfer) and Rupay (India's own VISA)

Anyone who has taken up this course? How deep is this course?

I have been using flyway for over half a dozen projects and more than a few years. Works very well.

UPI has a limit of 10k per transaction and 20k per day.