The Centre and States will tighten GST rules to curb fake invoicing. Finance ministry sources said that law committee of GST Council had a meeting to discuss the issues. The rules relating to deemed registration shall also be tightened so that fake operators can be prevented from claiming fake credit. The Directorate General of GST Intelligence, the investigation unit under GST, has arrested 30 unscrupulous persons dealing with fake invoice and identified 1,282 entities and booked 393 cases so far.