The Directorate General of GST Intelligence (DGGI) and the CGST Commissionerates have recovered more than Rs 700 crore and arrested 215 persons in the last two months in cases related to fake GST invoices that were used to illegally avail or pass on input tax credit (ITC).GST intelligence authorities have registered about 2,200 cases and unearthed more than 6,600 fake GSTIN entities during this period, sources said.The Directorate General of GST Intelligence (DGGI) and the CGST Commissionerates have so far arrested 215 persons, including six chartered accountants and one company secretary, and recovered more than Rs 700 crore from these fraudsters, sources said.Those arrested not only include operators of fake entities but also the end beneficiaries who connive with these fraudsters running businesses of fake invoices on commission basis, sources said.