"The GST success is predicate on the IT infrastructure... The business processes which are already in the public domain -- registration, return, refund and payments -- we are getting the responses, we are examining those responses," he said in a keynote address on 'Taxation Issues and the way Forward for GST and FDI' at CII's Retail Summit here.
The business process with regards to GST was put in public domain in October last year.
Talking about various aspects of the GST, Shah said the proposed indirect tax regime would substantially mitigate the cascading effect of taxes and create a national common market.
The Constitution Amendment Bill for roll out of GST has been passed by Lok Sabha, but is stuck in Rajya Sabha where the ruling party does not enjoy majority of its own.
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Finance Ministry Arun Jaitley had time and again said the government was making all efforts for passage of the important bill. The government had planned to implement the new regime from April 1 this year.
He said that the states are joining the Goods and Services Tax Network (GSTN) for Information Technology process for GST.