The Biotech Department of BIT Mesra is average. If you want to join a core company after completing your degree, there are better alternatives. Maximum placement at the institute is in IT and Analytics. Among the companies that visit the campus for pavement, Nestle is the only one that is close to your area of interest. 

Here are some other facts that you need to know about the Biotech department. 

• The department has great faculty and infrastructure. Despite that, you will see many students consulting a lot of books for their course-work, as it is not close to the concept of engineering that they had in mind.
• As mentioned before, very few core companies visit the campus placement. One of my friends pursued Biotech from BIT Mesra and during her time Biotech students were allowed to sit for only a few consultancies as well. 

There are alumni of this institute who secure good off-campus placement offers on their own. So, getting a good job offer depends on your effort. This is a brief picture of BIT Mesra. The final decision is up to you.