Hey.

The NCHM JEE form has already been released. The form can be filled till 15th March. You need to register for the same using the link at the end.

You need to enter all the required personal details that are asked on the form. You need to select a security pin and submit the details. You can log in using the creditionals and then start filling the Application form by entering the personal and educational details required. You need to upload the documents required and then fill the application Fees. 

https://ntanchm.nic.in/ntanchm/root/Home.aspx?appFormId=NCHM19

Best of luck