Paid self assessment tax after filing the return -ay-2017-18

Hello,

I paid my self assessment tax after filing my return(AY-2017&18), and now I received a outstanding tax demand stating the demand amount to be paid.

So, I responded to that by "disagree with the demand"-and entered my BSR code, Date of Payment, Serial number & amount.

Is it correct, or do I need to revise the ITR.

And also how to check whether my response has been reviewed by them.