Registration as separate vertical

Find out if your are constitutionaly going to separate the entity then the question is separate,

then pan will also be separate then it is new registration act fast 

Yes you need seperate registration under gst for each and every vertical.you have to register for each vertical in the state where your business is situated and where you you have your business transaction although your PAN card shall remain same.

If within the business house separate vertical of business for ex- manufacturing plastic and manufacturing Mould , it is known

as separate vertical business then take 2 different GST registration