Yes you are eligible for M.Sc geography as its eligiblity says that the candidate should have B.A with geography special or B.sc with geography as a special subject or any B.sc with geography at second year level.
However for admission to M.sc in geography a candidate must also have offered chemistry as one of the subjects.

Follwing are some of the colleges you can go for:

• Asutosh college
• Lady Brabourne college
• Nirmala college
• Bajali college
• Krishnagar government college
• Sarsuna college
• Sikkim university
• Nalanda open university
• Mizoram university
• Presidency university
• Vidyasaggar university
• Bhairab ganguly college