Your chances of getting into Anna University is very low as they require a TANCET cutoff of 57 for BCM category. 

But you can check out other colleges also with your rank

• PSNA college of Engineering and Technology 
• Galaxy Institute of Management, Chennai 
• PSG Institute of Management, Coimbatore 
• Measi Institute of Management 
• Velammal Engineering college, Chennai and other private colleges. 

Good luck 

Dear Abitha, Don't worry your marks is not very low and at these marks, you have chances to get some good Instituted but Anna University have cut off is above these mark. so you have difficulty to get this Instituted so my suggestion is you may try some another good Instituted as your backup plan maybe it helps you. if you think you may chance then you may try your luck.

All the best.