Which college will I get in tamilnadu with rank 6311 and BC rank 3377

If you mean TNEA 2026, with General Rank 6,311 and BC Community Rank 3,377, you have a good position for several engineering colleges in Tamil Nadu. TNEA uses the overall rank and community/category for counselling, and the exact college depends heavily on your preferred branch.

At this rank, you can target colleges such as PSG College of Technology, Thiagarajar College of Engineering, Coimbatore Institute of Technology, SSN, Sri Sairam Engineering College, etc., but CSE/IT cutoffs are much tighter and vary by round.

If you tell me your TNEA cutoff mark (out of 200) and preferred branch (CSE/IT/ECE/EEE/Mechanical, etc.), I can give you a realistic college-by-college list for rank 6,311.