Yes you are eligible for grace marks & exemption. You need to apply for both the rules at a time. Better to apply for grace marks in core subject among wireless or VLSI. & leave other 2 subjects under exemption rule to get the memos.
Regarding procedures you can visit @ http://www.forum.universityupdates.in/forums/procedures.30/
Yes sir.Is it the highest mark till now you got in external exam among all regular/supple exams ?
Apply at your college.Thnx sir.
Can I apply both at jntuh or in my college.
You cant apply for grace marks. Clear one subject & apply for exemption to get the degree.Yes sir.
Apply at your college.