Who are the said catagories of taxpayers

who are the said catagories of taxpayers.....

The due date for filing of income tax returns for Assessment Year (AY) 2018-19 is July 31, 2018, for certain categories of taxpayers. Upon consideration of the matter, the Central Board of Direct Taxes (CBDT) extends the due date from July 31 to August 31 in respect of the said categories of taxpayers,” an official statement said