Which of the following festivals is celebrated as a kite-flying festival across India?

Makar Sankranti

The correct answer is Option (4) → Makar Sankranti

The festival celebrated as a kite-flying festival across India is Makar Sankranti. While Makar Sankranti itself has various names depending on the region (Pongal in Tamil Nadu, Lohri in Punjab, etc.), the tradition of kite flying is a common thread across many parts of India during this festival.