I started my IT career in the banking world and am interested in how digitisation and big data will change the banking industry not just in India but worldwide. From the numbers you quote, India is in a great position to grow the number of its online banking transactions and become a world leader. When I left the banking industry 10 years ago online transactions were on the increase. This lead to a drive by banks to shut branches and encourage people to do all their banking online. Cheques have all but died out in the last 10–15 years. Are bank notes and cash next?
I came across the following article on how to digitise your business during the week — https://bizedge.co.nz/media/whitepaper/2016/07/26/YourNewToDoList-HowToBecomeADigitalFirstBusiness_Generic_250716.pdf
Using Big Data to change how the business work is at the centre of their recommendations. I look forward to reading your future blogs on how India will use digitisation and Big Data to become a cashless society.