Which is best ip or comp.science as a 5th subject in 11th class.?

hi..i myself took computer science in 11th and yes its better if you take that up as the elective, especially if you are planning to go for engineering after your 12th because the 1st year of engineering has C.S. as a subject in the syllabus. Also you will get to learn the C++ language if you take up C.S., which will be really helpful for you later on.