Hi avm,
We did medicals for my husband. So, Yes, U need to take the form along with you when u go for medicals. Also, when you book the appointment with any one of the panel of doctors specified by CIC, the person booking your appointment will let u know what other documents are required.
In chennai they asked for passport photocopy, any other ID proof original and photocopies and 6 passport photos. So better check with the respective clinic or hospital on wat they require.
Once you complete your medicals, they send the medical reports online. You will be given a receipt for your reference.
Hope this helps!
Madu