With an 85 percentile in JEE Main, you can consider the following engineering colleges in Chennai:

• SRM Institute of Science and Technology, Chennai : Offers various B.Tech programs including Computer Science and Engineering, Electronics and Communication Engineering, and Mechanical Engineering.

• IIITDM Kancheepuram : Provides B.Tech courses in Computer Science and Engineering, Electronics and Communication Engineering, and Mechanical Engineering.

• BS Abdur Rahman Crescent Institute of Science and Technology, Chennai : Offers B.Tech programs in Computer Science and Engineering, Electronics and Communication Engineering, and Mechanical Engineering.

  Recommended

• Rajalakshmi Institute of Technology, Chennai : Provides B.Tech courses in Computer Science and Engineering, Electronics and Communication Engineering, and Mechanical Engineering.

Admission to these colleges depends on various factors including the specific branch, seat availability, and category. It's advisable to check the individual college websites for detailed admission criteria and cutoffs.

1. Anna University (AU Chennai) – Various B.Tech branches under TNEA.

2. SRM Institute of Science and Technology (SRMIST) – Computer Science, Mechanical, Civil, etc.

3. VIT Chennai – Admission through JEE Main scores for branches like CSE, IT, Mechanical.

4. Hindustan Institute of Technology and Science (HITS) – Computer Science, Mechanical, Civil, etc.

5. Crescent Engineering College – Mechanical, Civil, CSE, Electrical.

6. BS Abdur Rahman Crescent Institute – Mechanical, Civil, CSE, Electrical.