According to the official qualifying cutoff for GATE, the cutoff marks out of 100 to qualify for Biotechnology is 35.9 for general,32.3 for OBC and 23.9 for SC/ST. You have 36.67 marks out of 100 , so made the cut to qualify for biotechnology.  So you have a decent chance

hello

FOR CEG

Https://collegedunia.com/college/28261-college-of-engineering-anna-university-ceg-chennai/cutoff-tancet

For the cut off in MTECH

Https://engineering.careers360.com/articles/kerala-mtech-cutoff

PG ADMISSIONS

At the postgraduate level, CEG Anna University offers Master of Engineering (M.E.) and Master of Technology (M.Tech) for a duration period of two years. The college also offers part-time M.E and M.Tech programs for the working professionals,

Hello Sushmi, you have a decent score in TANCET, so you can get admission in Anna University, but of course, Nobody can give you a guarantee that you will definitely. First of all,  it depends on the branch that you want to do the Masters in, which you haven't mentioned.

you can checkHello

your eligibility below from the cutoff

CUT OFF IN AEROSPACE

FOR GENERAL BRANCH                            

OPENING RANK:       146                                        CLOSING RANK:1295

FOR SC BRANCH

OPENING RANK:     2348                                         CLOSING RANK:8272

FOR OBC

OPENING RANK:    1311                                            CLOSING RANK:2939

ELIGIBILITY CRITERIA

Admission to the research courses offered by MIT is subject to meeting

Dear Reader,

Your score is quite good as per your category and yes you can expect thiagarajar college as per their cut off your chances are quite good. Just praticipate in counselling and wait for the results. For more updates kindly visit the link mentioned below.

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

I think you have a Probability of getting courses other than structural engg.