What are the most common mistakes students make in TNEA choice filling?

After years of watching counselling seasons, the same five mistakes repeat:

• Too few choices. You get up to 100; students who fill 10–15 risk no allotment at all.
• Trusting one year's cutoff. Between 2024 and 2025, several colleges swung 50+ marks — in both directions. Always read multi-year trends.
• The Chennai filter trap. Only ~5 colleges are recorded under "Chennai" district; the metro's ~88 sit under Chengalpattu, Kancheepuram, and Thiruvallur.
• Ordering by others' opinions. The engine takes your first reachable choice — a list ordered by a relative's ranking, not yours, allots you their preference.
• Listing colleges you'd never join as "filler", then facing an unwanted allotment.

Every one of these is avoidable with a week of calm research. Start yours with the free TNEAhelp College-Finder.