Dear Raj,

BA in philosophy is a 3 years course. It's an undergraduate course. In this subject you learn about problems associated with mind, values, language, etc. You'll learn critical thinking skills, linguistic ability and etc. Through this course,you can get jobs in  advertising, marketing, investments banks, publishing firms , etc.

BA in literature is an undergraduate and three year course. This course involves your thinking skills. You'll learn about novels, plays, poets and prose and also basic nuances of writing. Through this course, you can go into business services, government sectors, etc 

Regards