Which of the following sections (Parvan) of the Mahabharata narrate the story of Ekalavya?

Adi Parvan

The correct answer is Option (3) → Adi Parvan

The story of Ekalavya is narrated in the Adi Parvan of the Mahabharata. The Adi Parvan, also known as the Book of the Beginning, is the first book or section of the Mahabharata. It sets the stage for the epic narrative and introduces key characters and events, including the story of Ekalavya.

Ekalavya's story in the Mahabharata is about his dedication to archery and his guru, Dronacharya. Ekalavya, despite being rejected by Dronacharya, becomes a self-taught archer and excels in archery.

So, the correct option is [3].