A rescue operation is underway after a four-year-old boy fell into a 220-foot-deep open borewell at Dhanaura village, Ambala, on Tuesday morning. The child has been identified as Nirbhay. The incident took place around 7 am when he was accompanying his family to agricultural fields and accidentally fell into the borewell. NDRF, SDRF, the Army, and local officials are working to save him.