Hi dear..Intermediate can be called as a backbone for your studies and it's  the most crucial time. Your selection of subjects and Course will decided what you will become in future.

If you choose combination of PCM ( Physics, Chemistry, and Maths)  or PCB (Physics , Chemistry and Biology )then carrier options will be more wider for you. Various jobs opportunities welcome PCM/PCB with English.

P C M - Minimum Eligibility for NDA is 10+2 with PCM.You can appear for Nautical science studies , Engineering, B.Sc, statistician, Meteorological studies, Accountant, Market Researcher, Architecture, Railway Apprentice, Air force and Navy services.

PCB allow you to appear for MBBS examination, Pharmacy studies, B.Sc, Nursing studies. Physiotherapy, Dental studies, Homoeopath, Ayueveda, Food technology, Home science, Nutrition and Dietetics, Radiography,Rehabilitation Therapy, Anthropology, Zoology,Botony, Speech and Language pathology. 

It is advisable for you to decide your aim in life, and then choose your subject. I would recommend you to choose either PCB or PCM with English and other subject of your choice.