Hello Sridashini, 

Biomedical technology is a booming field right now with the revolutionization of health and technology. As for the scope, you can have jobs like manufacturing engineer, physician, software engineer (for medical programs) ,  quality engineer,  researcher, designer, assistant professor,etc. 

Here you can find a list of colleges in Tamil Nadu providing biomedical engineering along with the entrance exams accepted by them or the entrance exam conducted by them : https://engineering.careers360.com/colleges/list-of-biomedical-engineering-colleges-in-tamil-nadu

Colleges that provide this course in Kerala along with the entrance exams conducted/accepted by them can be found here : https://engineering.careers360.com/colleges/list-of-biomedical-engineering-colleges-in-kerala

As you can see, colleges either accept JEE Mains result or their own state/college entrance exam.

Hope this helps  :)