I have gone through the posts; mojority of students are MBBS. it is great; all are really good readers. dear all, zoology is one of the easiest subjects for MBBS graduates to opt in CSS, my personal experience. you only need to prepare paper 1, and it takes almost 20 days to make notes for paper 1 from p.s verma's and Miller's books. (note: your attension be on repeated topics in past papers)
paper 2 will be a lot easier for medics, but for non medics it requires some efforts. Non medics can refer guyton and hall's textbook of medical physiology and FIRDAUS'S REVIEW BOOK OF PHYSIOLOGY.
Further discussion will be continued.......
regards,