Yash, It does work. I have been driving this effort for the last 4 years, we have distributed 1 million plus copies so far, out of which probably a few hundreds only have used it, but we are yet to see one case of "failure". On the other hand, we have received numerous feedback on success stories. I am sure you would agree that our fellow citizens would have reported to us promptly if it didnt work or if it complicated their situation, when they used the Zero rupee note. I have personally seen it work few dozen times. Cheers..