Gatr1 for FY 2019 - 20 wrongly report ed

Dear experts, 

In Fy 2019 sep we reported getr1 with so many repeats of wrong records of previous months  but we corrected in 3b and filed gstr 9 correctly now we came to know that we forget to correct GSTR1 NOW gst  issues notice to pay that tax with interst can any one advice