There are a lot of scopes for both.The thing is these subjects are valued less in india. I don't know more about zoology but as far as I know microbiology has a lot of scope

If you take Microbiology , you will have dairy industry knowledge , you will have forensic knowledge , you will have opportunity to be in education field , you will have broad opportunities in food industry , medical industry like various biological production unit as well as Vaccine Production , you have broad scope in R & D field , You have better scope with Government , You will be learn about food inspector checking the food quality in the market , You have opportunities in water industry and water quality person in Govt. As well , Other then that all the Govt. Officials who do various type of tests on Industrial effluents are also associated with Microbiology , Every industry has their Microbiologist who regularly performs tests on different products as well as Effluents , If you choose Microbiology you can perform various medical tests which are performed in Laboratory , you must have had fever once and doctor would have asked you to test your blood sample , if you have paid enough attention at the bottom of that report the signature will be there of Microbiologists.

Zoology and Microbiology both of them have infinite scope.

Further would like to study or research in Microbiology or would you like to do research in Zoology. Do you like animals more or microorganisms more?

If you still have any queries feel free to ask in the comment section down below.