Hello man, you have a pretty decent marks. Below is the list of college you can try your luck on. It is based on the last year's cutoff and I have listed all the college with cutoff less than 45

• University of Madras, Chepauk
• Sri Sivasubramaniya Nadar College of Engineering, Kancheepuram
• University of Madras, Chepauk
• Thiagarajar School of Management(Co-Ed), Madurai
• Kumaraguru College of Technology, Chinnavedampatti Post, Coimbatore
• St. Joseph’s College of Engineering, OMR, Chennai
• Easwari Engineering College, Ramapuram, Chennai
• R M K Engineering College, Gummidipoondi, Thiruvallur

Hope his helps!!