Hey Vrinda

As you may know that there are only 26 seats for MSc Microbiology in Fergusson College. You can check the cutoff from this list http://www.fergusson.edu/upload/news/26226_docu_MSc_I_Provisional_List.pdf .

The syllabus is the same as to what you have been taught in your UG.The best books you can choose for preparation are :

MCQs in Microbiology by G Vidya Sagar ,Question Bank of Microbiology Paperback 2015
by Adesh Kumar & Sushil Kumar Singh (Author) and  Pathfinder in Biological Science - For Entrance and Competitive Exams(this one is the best though).