Core Banking Solutions were installed by the bankers’ long back in 1970’s to meet the requirements of the customers anywhere and at any time electronically as well as through other branches and banks. Core Banking channels enable the customers to conduct their banking transactions directly without approaching the bank branches. With the launching of Digital India campaign by the Indian Prime Minister Sri Narendra Modi on 2nd July 2015, the concept of Core banking received greater momentum in India. Channels of Core Banking, particularly Internet banking, ATMs, RTGS/NEFT are highly useful for making all sorts of payments including payment of GST. GSTN (Goods and services Tax Network) is a non profit non government organisation vested with the powers to administer GST in India. It is the technology backbone for GST in India. For the payment of GST, one has to register under GSTN (Goods and Service Tax Network) and obtain GSTIN (Goods and Service Tax Identification Number) from this organisation. This paper is an attempt made to study the opinions of businessmen in general regarding GSTN registration and what role Core banking channels like Internet banking, Debit Cards/Credit cards; NEFT/RTGS play in meeting their requirements as regards payment of GST. Study is based on the opinions of selected businessmen of Mangaluru city. Opinions of 100 respondents are collected by using a questionnaire. Study is empirical and descriptive in nature. Secondary data is incorporated from newspapers and internet.

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