Which four-day harvest festival celebrated in Tamil Nadu in mid-January involves boiling newly harvested rice with milk until it overflows, symbolising abundance?

• A Onam
• B Bihu
• C Pongal ✓
• D Makar Sankranti

Pongal, the Tamil harvest festival, is named after the traditional dish of sweetened rice boiled with milk, and marks the start of the Tamil month of Thai.