"It is very clear that terror financing has dropped drastically. We have learnt from security agencies in Jammu and Kashmir and Chhattisgarh that cash flow has come down. The number of incidents of stone throwing has dropped in Jammu and Kashmir," he told DD News.
On this day in 2016, the PM addressed the nation and announced the ban on Rs. 500 and Rs. 1000 notes. This, the union minister said, has also acted as a deterrent in terror funding since liquid cash acted as a lubricant in such funding.
"It was an effort to change the prevalent (economic) situation. India wants to migrate from middle income economy to a developed one. But in our system most big investments are done through black money. Even in businesses people maintain two types of (accounts) books. People are always trying to evade taxes."
The minister said when an honest citizen pays tax, he also pays for the one who evades tax.
"That is the reason you have to change the situation. It is not possible to change it if there is more cash in the system. If we want more development, we have to have less cash in the system."
Mr Jaitley also dwelt on the importance of digital transactions.
Admitting that one demonetisation drive will not do away with all the bad economic practices, Mr Jaitley said, "It is one year of demonetisation and one address by the Prime Minister will not stop it. But in the last one year, taxpayers' numbers have gone up. Terror funding has been squeezed."
He said demonetisation ensured that bigger amounts of black money accumulation in cash was no longer possible.
"We have learnt from authorities in Switzerland that Indians have deposited less cash."
Talking about decreasing cash-to-GDP ratio, Mr Jaitley said the Reserve Bank of India was trying to bring it down further. Cash-to-GDP ratio has come down from 12.5 per cent to 9 per cent.
"When you have alternative, why will you depend on cash?"
Regarding the Goods and Services Tax (GST), he said, "It is the fourth month of GST and the number of assesses has increased by 40 per cent."