LUCKNOW, Sept. 7 -- Four members of a family, including three sisters aged 16, 12 and seven, were killed when their mud house collapsed amid rain in Hirni village under the Sadh police station area of Kanpur district on Sunday morning. Their 19-year-old sister was critically injured in the incident. Chief minister Yogi Adityanath took cognisance of the incident and expressed condolences to the bereaved family. He directed officials to ensure proper treatment for the injured and provide all possible assistance to the family, while wishing the injured a speedy recovery. The deceased were identified as 45-year-old daily-wage labourer Mukesh and his daughters Maya, Neetu, and Pallavi. His 19-year-old daughter Kajal is undergoing treatment at Halet Hospital in Kanpur. The incident occurred around 9.30am when all five family members were inside the house. Villagers said the structure had weakened due to continuous rainfall over the past few days and suddenly collapsed, trapping them under the debris. Hearing the house collapse, villagers rushed to the spot and began rescue efforts, while police and administration officials were informed. After nearly two hours, the five family members were pulled from the debris and taken to Patara community health centre (CHC), where doctors declared Mukesh, Maya, Neetu and Pallavi dead. Kajal was referred to Halet Hospital in Kanpur in view of her critical condition. Mukesh's cousin Tej Bahadur Singh alleged that the family repeatedly called the Sah police after the house collapsed, but their calls initially went unanswered. He claimed the police arrived late, prompting villagers to start the rescue operation themselves. The family also alleged that doctors were unavailable at the CHC when the injured were brought in, delaying treatment. They demanded an impartial inquiry into the incident and action against those found responsible. Meanwhile, police and administrative officials reached the village and gathered details of the incident. Relief and rescue operations were carried out with the help of villagers....