You can done Bachelor in Library science as it can be after completing graduation. Certificate course or Diploma in Library science are also avialable.

As you known that Librarian is who arrange cataloge of library and arrange the books in mist specified manner through which student can easily get thier specified book which they are looking for.

In various college of India Bachelore of library science is available few of them are University of Delhi, Banaras Hindu University.

You can also do advance cousre in Libraray science by going through Masters