Dear Bhargavi,

There are 3 top colleges in Bengaluru that offers M.Sc in Botany :

• Mount Carmel College, Bangalore
• St Joseph's College, Bangalore
• Government Science College, Bangalore

Well, some other colleges in Karnataka that offers M.Sc in Botany are as follows :

• Maharani's Science College for Women, Mysore
• Government Science College, Chitradurga
• SBRR Mahajana First Grade College, Mysore
• Bharathi Degree College, Mandya and others

For more details about the colleges , refer this :

https://university.careers360.com/colleges/list-of-msc-in-botany-degree-colleges-in-karnataka?city=Bengaluru

Hope this helps !