GSTR-1 is a monthly or Quarterly return depends on turnover sales less than 1.5crore or above 1.5 crore where the registered person is required to provide details of the value of outward supplies made by him. Additionally, the return also requires you to provide details of the invoices raised, debit notes and credit notes issued. GSTR -2 is the part where the registered person provides inward supplies received by him on which he wishes to avail input credit. The details in this return are auto populated from the GSTR 1 filed by other suppliers. In case any additions are to be made, the same shall also be possible. Filing GSTR-3B form is mandatory for all those who have regestered for the goods and services tax(GST). The GSTR-3B is a simple tax return introduced by the cental board of excise and customs(CBEC). All GST registrants have to file GST-3B form. It is must that you have a seperate GSTR3B file for each goods and services tax identification number(GSTIN) you have.

Above screenshot represents the GST report sheet that report shows outward suppliers and inward suppliers.