After launching Google's new payment app 'Tez' in India, Finance Minister Arun Jaitley said compulsion of going digital post note ban has become a habit and e-payments will gather pace on account of government initiatives and technology advancement.

High denomination currency circulation has come down in terms of volume after demonetisation of Rs 500 and Rs 1,000 notes that came into effect from November 9 last year, Jaitley said.

"Obviously in the month of November, December and January, a lot of people went in for digitisation in terms of mode of payment more out of compulsion rather than finding it a more convenient method to transact, but that compulsion created a habit for many," he noted.

"We reached a peak figure (after the demonetisation), then it marginally slipped and is now bound to pick up again," he said after the launch of mobile app Tez -- a Hindi word which means fast -- for digital payments developed by Google for India.

Various government initiatives to encourage digital transactions are going to make a major advance in that direction, he added.

Referring to the benefits of demonetisation, the finance minister said the high denomination currency in circulation has come down.

"As we stand today, the high denomination currency has squeezed... the squeeze process is going to happen in the natural course of the economy. Second important test is as a consequence of this how much we are able to expand the number of assessees and the tax base, both direct and indirect," he said.

According to the RBI, there were as many 588.2 crore of Rs 500 notes, both old and new in circulation, as of March 31, 2017. As of March 31, 2016, there were 1,570.7 crore Rs 500 notes in circulation.

As many as 328.5 crore pieces of new Rs 2,000 notes were in circulation as on March 31, 2017, the RBI annual report said.

"Now, the time has come with application as simple as this that what started as compulsion becomes a matter of convenience and eventually a matter of spending habit as far as Indian people are concerned," the finance minister noted.

Built on the government-supported Unified Payments Interface (UPI), Tez allows users, free of charge, to make small or big payments straight from their bank accounts, Google said.

The app was built for India, working on the majority of the country's smartphones, and is available in English and seven Indian languages (Hindi, Bengali, Gujarati, Kannada, Marathi, Tamil and Telugu).

Tez works in partnership with four Banks -- Axis Bank, HDFC Bank, ICICI Bank, and State Bank of India (SBI) -- to facilitate the processing of payments across over 50 UPI- enabled banks.

Google's new app 'Tez' will not compete directly with the likes of Paytm and other mobile wallets, instead it will use bank accounts to make payments via the phone. The payment will be based on UPI (Unified Payments Interface). The payment app works with all banks that offer UPI services.

The application has been made available on both Play Store and iOS' app store. This new application is a big announcement from Google as it's the first payment application it has launched which is specific to Asia.

Unlike digital wallets, there is no need to top up your balance. Instead, the user can directly pay from their bank account. The app despcription explains, "Tez works with your existing bank account, which means your money is safe with your bank and you'll continue to earn interest. There's no need to open a separate account or worry about reloading wallets."

(with PTI inputs)