Hello,

Yes, you can pursue an MSc in Geology after completing a BSc in Microbiology if you intend to prepare for the UPSC exam. While Microbiology and Geology are different fields, there's no strict requirement for a specific undergraduate degree for UPSC preparation. However, whether it's useful or easy depends on your interests, aptitude, and the relevance of the subjects to the UPSC exam. Geology can be relevant for certain UPSC exams, especially in fields like environmental science and geography, but it's essential to choose a field that aligns with your interests and career goals.

Hope this helps,

Thank you