Input tax credit of different month

ANY MISTAKE DONE IN GSTR 3B CAN BE RECTIFIED VIA GSTR 1 AND GSTR 2 THEREAFTER , IF STILL THERE IS MISTAKE IN FINAL MONTHLY RETURN GSTR 3 SO IT CAN BE RECTIFIED IN THE MONTH OF AUGUST VIA GSTR 1 AND GSTR 2 

IMP :: NO PROVISIONS W.R.T REVISE THE GST RETURNS BUT CAN BE MODIFIED IN THE NEXT MONTH 

u can modified gstr 1 or 2 as the case may be

but before filling gst return parties accounts must be match

as to avoaid this kind of situvation