Hello Student

You have not mentioned any specific class of exam. The information you have given it seem to me that you you have appeared and passed class 10 CBSE exam. The marks of your clas 10 cbse in Science and social science is 35 each. CBSE rules for class 10 passing marks is 33%. So you have passed in the subjects. But if you want to reappear in these two subjects for good marks then you have to appear for improvement examination of  two subjects. Go through the normal procedure of the CBSE for improvement exam that you have to apply for it and appear at the  schedule time and date for the improvement exam. Study hard and you will get good marks surely.

This will help.