Yes,JNTUH has an option of leaving 2 subjects. But that does not mean you don’t have to appear for the exams in these subjects. It’s just that these two subjects are spared from being included in the final grade calculation.
So you have to study all the subjects and appear for their respective exams. Ultimately when the result of your final semester exams is out, you can leave two subjects in which you have backlogs. For this, you will have to fill out the form beforehand. Also, this is subject to certain conditions such as
In such case case, you don’t have a single back, then non-technical subjects having the least value are removed automatically. The final percentage is calculated after removing these subjects only.