Should I cancel my GST registration?

I have 2 different business having each 30 and 35 lac revenue annually , both work at separate shops

But I had one GST since long and didn't changed that to 2 seperate because previously GST exemption was 20 lac so no meaning to separate

But now if I take GST for both separately than it come below exemption limit .

So should I cancel this GST number for existing business and both comes under exemption.

So what should I do?

Please guide