There is no particular syllabus pattern that is prescribed by the university for M.Sc Botany entrance examination. Questions are divided in some sections such as General knowledge and Awareness, Botany and Zoology and Chemistry. Therefore, to be prepared for the exam, you should study all the portions that have been covered in B.Sc botany. Beside this, if possible you can also go through Biology and Chemistry NCERTs of 11 and 12th. Try to solve previous year question papers.