With the score you're mentioning I'm afraid it's a little difficult to get into either Thiagarajar school of Management (as their cutoff lies somewhere near 36 for SC candidates) or Sri Sivasubramaniya Nadar college of engineering (as their cutoff for SC candidates lies somewhere near 42).

But if seats remain vacant then only you may get a chance. 

Otherwise you can check out these colleges also

• RMK Engineering college, Gummidipoondi 
• Easwari Engineering college, Ramapuram 
• St. Joseph's college of Engineering, Chennai 
• Sona School of Management 
• PSG Institute of Management, Coimbatore and other private colleges 

Good luck