Hii,

The syllabus for entrance exam usually consists of those areas  covered in Bachelor of science. Some of the main topics that form part of the syllabus of M.Sc in Botany entrance exam are:

Biotechnology

Anatomy

Structure of flower

Biodiversity

Cell Biology

Bryophytes

Community ecology

Discovery and nomenclature of enzymes

Ecology

Photosynthetic pigments

Cryptogams

Embryology

Genetics

Plant Taxonomy

Gymnosperms

Importance of water to plant lifes

Mendel’s laws of inheritance

Formation of secondary xylem

Medicinal Botany

Plants and environment

Microbial Diversity

Structure of viruses (with special reference to TMV)

Taxonomy

Morphology of angiosperms

Organization of the root apical meristem

Physiology

Structure and functions of cell wall and plasma membrane

Tissue Culture

Hope this helps.

All the best!!