Gst on rent for property

Just intimate about the same to bank that you are not required to be registered under GST.

If the rent agreement permits, bank may deduct 18% from your rent payment and pay to government under RCM. (though you can protest for that as the gst paid by bank will be reimbursed  to bank from output GST)

Fate of the tax payers who have not migrated to GST from old ST/VAT is not clear.... so wait and watch.....