A four-year-old boy fell into a borewell in a village in Uttar Pradesh's Mahoba on Wednesday and efforts are underway to rescue him, the police said. The incident occurred around 2.30 pm when Dhanendra was playing. His cries can be heard from inside the borewell, police officials said. National and State Disaster Response Force have been called from Lucknow to assist in the rescue operation. Arrangements have been made to supply oxygen inside the borewell.