A four-year-old boy was pulled out of an open borewell in Ambala after a 21-hour rescue operation. The incident has renewed concern over unsecured borewells and enforcement of safety measures.

Nirvair Singh, the boy, had accompanied his father to the fields in Dhanaura village in Ambala to deliver food to his grandfather at 7 am. While playing, he slipped and fell into the open borewell.