Hi,
If you are considering research to be your path for life them you should opt for academic degree courses that is Bsc, msc and then further PhD in biotechnology rather than choosing btech which is more technical in nature and is a professional degree course. In terms of ranking or preference, all the listed colleges are more or less the same cause all of them are private ones with decent labs and faculty available.
I hope thai helps.
All the best.
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