[Ylpertnodi]

> What is the exact reason for a redesign (and to spend public money on that topic)? Is it to introduce new anti-counterfeit measures?

If you want to eliminate corruption, change the color [design] of your banknotes.

"You give us one old one, we give you one new one. Hey! Where'd you get £€$50,000 on your income?

But, no-one will do that.

[sajithdilshan]

It’s not like the old notes becomes invalid, they would be in circulation for years to come giving enough time for black money to be converted to new notes