The Central Board of Direct Taxes said that around 6.17 crore income tax returns and about 19 lakh tax audit reports have been filed on the new income tax e-filing portal. Of the 6.17 crore returns filed till February 6, 48%, or 2.97 crore, are ITR-1, while 27%, or 1.65 crore, are ITR-4 and 13%, or 81.6 lakh, are ITR-3.