Igst /sgst /cgst

SIR,

MY EARLIER LEDGER BALANCE - NIL

NOW THIS MONTH ITC AS FOLLOWS.

IGST- 149416

SGST- 390000

CGST- 390000

MY OUT PUT IS -  469650

                            -469650 ( EXAMPLE)

here gstr 3b igst payment  column,  takes total igst  in - cgst- and answer is excess  75000/-

but in sgst its shows short sgst- the same 75000/-

is it correct?

and can i modify the payment column and divide the 75000/2 = 37500/-?

Actually no need to pay 75000/-

hw to solve this?