Lord Krishna willingly gets tied by mother Yashoda.
Damodar means “One who has rope around his belly’. Dam – Rope, Udar – Stomach/Belly
One day, when Mother Yashoda saw that all of the maidservants were already engaged, she personally began to churn the yogurt, and while doing so, she composed songs about Krishna’s childhood pastimes and enjoyed singing them to herself. Dressed in a saffron-yellow sari, with a belt tied around her full hips, Mother Yashoda worked hard, so that as her whole body shook, and her bangles and earrings tinkled. Because of intense love for her child, her breasts were wet with milk. Her beautiful face was wet with perspiration, and malati flowers fell from her hair.
Vaishnava-toshani of Sanaatana Goswami states that this took place on the Dipavali day. Among all of Nanda Maharaja’s cows, Yashoda kept several that ate only special grass that would flavour the milk to make it very tasty. Mother Yashoda personally churned the yogurt from this milk into butter, for she thought that Krishna was stealing butter from others’ houses because He did not like that which was ordinarily prepared.