Question

I “was” applying early and submitted my PART 1 a few days back. Due to some circumstances, I don’t want to do it now but rather do it in regular cycle. My interview is also scheduled.

What can I do? Can I retract back my PART 1?
Does this have any negative consequence? Look bad?

you should call the admissions office and explain your decision and ask for advice on the procedure. As to whether it will look bad that will depend on the reason why you want to defer your application. If it is because you feel it’s not complete and you’re not ready yet to submit it until it is to your likeness (essays need more work, scores need to come in, etc) then I think it will be understood