Dear Dwaipayan, 

You have a chance to get Biotechnology in SRM Chennai. 

As per trends 

B.Tech Biotechnology

2016 48000 Max. Closing rank

2015 52000 Max. Closing rank

As seats are increasing, it may benefit you. 

But if you want to go for Genetic Engineering(Chennai Campus)  or Bioinformatics(Delhi NCR Sonepat Campus) , then you have very high chance to get these branches. 

B.Tech Bioinformatics

2016 70000 Max. Closing rank

2015 60000 Max. Closing rank

B.Tech Genetic Engineering

2016 62000 Max. Closing rank

2015 55000 Max. Closing rank

You can also check it on Careers 360 College Predictor 

Https://engineering.careers360.com/srmeee-college-predictor