According to Bhagavata Purana, on Krishna’s first birthday, his foster parents Yashoda and Nanda gave a grand feast. Every resident of Vrindavan was invited to join in the celebrations. As Yashoda got busy with the preparations of the feast, she placed Krishna in a cool, quiet spot under a cart when he was sleepy. The cart was actually the demon Shakatasura in disguise, sent by Kamsa to kill Krishna.
Before Shakatasura could do any damage, Krishna woke up because he was hungry. He started crying and kicking both his legs. One of his legs hit the cart and it shattered into several pieces. Everyone was amazed, they shook their heads in disbelief at the infant’s strength. Little did they realise that the divine child had destroyed more than just a cart!