Sir, I agree with the views of Sri Kasturi Sir and Sri Sanjay Sir.
The tax provisons need to be seen in the interest of the Nation and not as an individual interest. The Government has well thought about the tax credit mechanism and come out with such provision in upcoming GST. Even now in present VAT regime, the input tax credit claim of the purchaser is first matched with the suppliers ledger before allowing the credit to the purchaser. The supplier uploads his taxable sales with TIN in his return and shows the tax that it he has paid, based on which the authority with the help of system does cross checking as to whether the TIN of purchaser is appearing in the details and allow the credit if appears. If there is any difference in the tax amount shown by the supplier with the credit amount claimed by the purchaser then the purchaser in order to claim set off has to get written confirmation from the supplier and produce the same before the authority to become eligible to claim the set off.
In GST, as well, the same system as that of VAT is proposed. An assessee shall get tax credit of those tax which he has paid on his purchases only when the supplier has paid the tax. This would be monitered through VAT Credit Ledger in GSTN.
An assessee might think that his primary motive is to carry out business and not to check whether his counter party has paid the tax collected or not. But if we think from the eyes of authority then we can understand that for tax authority to check whether assesses are paying tax or not would be tedious job. Also the authority shall have to issue notices and may have to start proceeding as well which would be troublesome to assessee. So in my view it is better that such provision is proposed where the said task is delegated to assessee. Since both the parties are having good business relations they can sought the issues amount themselves.
The idea is great which would minimise the intervention of the tax authority and encourage ease of doing business.
Thanks.