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 alias Babu was playing. "He is suspected to be trapped in about 25-30 feet deep borewell and his cries can be heard," police officer Anup Kumar Dubey said.