Yes you can surely cinvert Biomedical engineering Mtech at SRM chennai Campus. 

Yiur ranks are too good and easily can convert all seats at SRM campuses. 

https://engineering.careers360.com/articles/srmjeee-cutoff

SRM University has started the application process for SRMJEEE PG 2018. Candidates who are seeking admission to the postgraduate programmes offered by the university can fill the application form in the online mode. The online entrance examination of SRMJEEE PG 2018 for M.Tech admissions will be conducted on May 26 and 27 for all branches except Automotive Hybrid Systems Engineering. It is necessary for all candidates to qualify the entrance exam for admissions into the courses offered by the institute. All candidates have to register themselves tentatively before the 31st march 2018 otherwise they will not be allowed to participate in the examination. Go to the link below more details. 

https://engineering.careers360.com/articles/srmjeee-pg?icn=srmgeet_article&ici=srmgeet_exam_rdmrvp

SRM JEE is the enterance exam for admission in UG (B. Tech)  while SRMGEET is the entrenace exam for admission in  PG (M. TECH)