Hi

You have to register yourself at the official CGPET site. You will be required to fill some information and upload a few scanned documents like photograph and signature. Then followed by online payment to complete your registration, which will be followed by choice filling and finally the procedure will terminate after document verification in which the candidate has to be physically present t the centre.  

Also do check this link to know more about the CG PET 2019 Counselling Procedure in detail: https://engineering.careers360.com/articles/cg-pet-counselling. 

Best of Luck.

Hope this helps.

Cheers!