Dehradun, Aug. 2 -- Dehradun Police on Saturday arrested a state secretariat official and his sister in connection with the alleged dowry death of his wife, a government school teacher, four days after she was found hanging under suspicious circumstances at her matrimonial home in Harrawala. "On the basis of evidence, police arrested state secretariat official Saurabh Khatri, 36, and his sister, Surbhi Khatri alias Charu, 37, on Saturday," said Dehradun senior superintendent of police (SSP) Pramendra Dobhal. Police said the two were arrested from their residence in Laxman Enclave of Harrawala in Doiwala block. The SSP said the case had triggered widespread outrage and drawn national attention. "During the investigation, police recorded the statements of the complainant and other witnesses. We also obtained a video that the deceased had sent to her mother before her death, in which she stated that she had been facing continuous harassment by her in-laws since her marriage," Dobhal said. "Our investigation into the matter is underway. Strict action will be taken against all culprits," he said, adding that police would request the court to ensure a speedy trial. The woman was found hanging on July 29. Before her death, she recorded a video message addressed to her mother. In it, she said through tears, "Sorry, Mummy, I am leaving like this... everything has become strange... I have been enduring this for the last six months... I cannot bear it anymore... their mindset will never change... they keep calling me cursed." An FIR was registered the same day against her husband, mother-in-law Praveena Devi and sister-in-law at Doiwala police station under Section 80(2) of the Bharatiya Nyaya Sanhita (BNS), based on a complaint by the victim's mother, a native of Shrikot in Pauri Garhwal....