Hi Young Aspirant,
Being a life science student, you have a plethora of opportunities in future as it is a budding field.
I would suggest you to apply for a Master's Degree after your Graduation.
Even for Master's Degree there are many prestigious entrance examinations like
IIT-JAM(BT)
TIFR
JNU
Different University Entrance Examinations.

After completion of Master's qualifying one of the following examinations will help you land up into either a research based job or a PhD if you are willing to pursue it.
The examinations are
GATE(BT,XL)
TIFR
ICMR-NET
CSIR-NET
ICAR-NET
DBT-JRF
and many others.

Hope that answers your question.

Best of Luck!!