excess itc

show difference in Table 4 I.e., show correct amount pay the tax though DRC-03. Pay Interest only on two lakhs utilized amount only

No. you have to reverse it firstly in GSTR-3B in table 4B if not done in 2018-19 then can reverse it through DRC-03. with the interest @ 24% on the amount you have excess claimed. in annual return if you had reverse in 2018-19 you have mention those figures in table 12 and if reverse through DRC-03 then it will in table 7

Show the reversal in table 7(H) & in Table 12

Deposit the same with interest @ 24% & file DRC 03