Choosing an M.Sc in Biotechnology would likely offer better job opportunities and align well with your previous studies compared to an M.Sc in Bioinformatics as Biotechnology heavily utilizes biological concepts and techniques studied in Zoology, making the transition smoother whereas you required maths in bioinformatics you need strong computational skills in sequence analysis, gene expression analysis, and bioinformatics tools.

So i would suggest to go with msc biotechnology if you prefer a more hands-on laboratory-based approach.

While if you are interested in areas like drug discovery, genomics, proteomics, and personalized medicine, often within pharmaceutical companies, research institutions, or healthcare organizations.you should choose bioinformatics.

As per eligibility concerns You will be eligible to pursue these courses after completing your B.Sc Zoology with a PCB background as your 11th and 12th subjects.

However,both options are viable depending on your specific career interests and the skills you want to develop.

For eligibility criteria read here

https://www.careers360.com/courses/msc-bioinformatics

https://www.careers360.com/courses/msc-in-biotechnology