After your intermediate with physics, chemistry and maths as subjects you can make career in following fields

Engineering: In this field you can choose many streams of different subjects
Aerospace, Agricultural, Automobile, , Broad cast technician, Ceramic, Chemical, Civil, Computer, Construction, Electrical, Electronic, Engineer Manager, Environmental, Food, Fire, Industrial, Instrumentation, Leather, Marine, Mechanical, Mining & Metallurgical, Nano technology, Printing, Production, Plastic & polymer, Highway, Rubber, Genetic, Telecommunication, Textile

Architecture
Commercial Pilot
Merchant Navy

IT or Information Technology:
Application Programmer, Database Administrator, Information Technologist, Medical Transcriptionist, Network Administrator, Software Engineer, System Architect, Technology Manager, Web Developer, Multimedia Designer

Hardware:
Hardware Design And Development Engineer, Design and Development of Computer Hardware, Design And Development of Customized Microprocessor, Design and development of networking hardware, Service Maintenance Engineers/technician

Defense Services

Indian Army, Indian Air Force for officers

Physical Science:

Chemist, Mathematician, Astronomy, Forensic Science, Geographer, Geologist, Nuclear Physicist, Oceanography, Operation Research, Astrophysicist, Physicist, Statistician