What happens if at the end of semester your internal plus end semester exam don’t add up to 50 out of 100 at SRM University?

Depends on your regulation and the correction of the paper, also the degree to which the paper is difficult, I remember in my 4th semester i had a very difficult elective called digital image processing i had very low internals, somewhere around 23 or something i needed some 54 to pass, but i did not do well i was dubious about getting a 40+ but when the results came i managed to pass, so sometimes the cut off goes low, so don’t lose hope even if your internals+externals are around 40+ you can somehow pass.
so don’t screw your mood up by worrying about it.
Even if you do screw up , give it another shot! you’ll be better equipped with knowledge, and failures are stepping stones to success, i know that sounds cliche but yes,that is true it gives you an experience, and a lesson how you can screw up and how you can make up so that you know how the university holds up, overcome the fear of failure and you will be a very successful person and only way to do it is by facing the failure when it hits your face! It holds true for everything in life!