Hi You can do engineering after your XII even if you had Biology but in some specific streams like Biotechnology, Biosciences, Biomedical, Biochemical, Biological Sciences and Bioengineering. You need to check the eligibility for all of these before applying. SRM University and VIT offer such courses. Check their links below:
SRM - https://engineering.careers360.com/colleges/srm-university-chennai
VIT - https://engineering.careers360.com/colleges/vit-university-vellore
All the best!
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