For R13 regulation, students can leave 1 or 2 Subjects Maximum [Max of 8 credits] under subject exemption rule & grace marks of 8 for Regular/6 for lateral entry.
In 2-mathematics 24 in internal and 10 in best of all year ...
Where as 4-2 presstresses concrete 20 in i eternal and 13 in external
Rehabilitation subject 20 marks in internal and 10 marks in external