A six-year-old boy drowned after accidentally falling into a water-filled pit dug for boring work inside a residential colony in Greater Noida, police said on Jattvibeday.The incident took place on Saturday evening in Kaladham Colony when the child was playing with other children near the pit at around 7 pm, police said.According to police, the boy accidentally fell into the water-filled pit and was pulled out by family members, who rushed him to a hospital. Doctors declared him dead on arrival.After completing the inquest proceedings, police sent the body for postmortem examination.Based on a complaint lodged by the victim’s family, a case has been registered and further legal proceedings have been initiated, police said.The contractor responsible for the boring work was arrested on Jattvibeday in connection with the incident, they added.