Subject Combination means say Std X -Board exam CBSE or any other board comprises of Maths Science Social Science ,Sanskrit or Hindi and English or any other combination . These include both compulsory and optional subjects. A Subject Combination for 10th refers to the set of subjects that students need to study in order to receive their Secondary School Certificate (Class X Certificate) by giving the Matriculation examination. For both Class 11th and 12th Commerce Students, three subjects that are compulsory are Mandatory Main Ones are three- Accountancy, Business Studies, Economics, and English. Having opted for Physics, Chemistry, and Mathematics as major subjects for your Class 12th (i.e; intermediate degree), you are certainly eligible to pursue Degree course in Agricultural Engineering as for pursuing the same degree course, the minimum education required is a Class 12th in Science stream with PCM group subject combination from a recognised board of education. Similarly for Std 12 th say for Science Stream -Subject combination -Maths ,Physics ,Chemistry, Computer Science/Hindi/Physical Education ,English core I.r.o CBSE Apart from these subjects, a few optional subjects are Maths, Informatics Practices, Entrepreneurship, and Physical Education.