A birth certificate of Sheena Bora which has been surfaced today mentioned Upendra Kumar Bora and Durga Rani Bora as her parents. But in reality they are grandparents of Sheena and her brother Mikhail Bora. Indrani Mukherjee who was arrested for allegedly killing her daughter Sheena Bora, was their daughter. <br/><br/>The certificate was issued on 30th April, 2002 by Directorate of Health Services of Assam. Indrani introduced Sheena and Mikhail as her sister and brother, not as children. Meanwhile, a team of the Mumbai police has questioned Mikhail Bora at his residence in Guwahati today. <br/><br/>Later, he was taken to the Dispur police station. Though Mumbai police haV not revealed anything, it is believed that Mikhail threw some light on some angle to the killing of his sister. Earlier, Mikhail claimed that he knew the reasons behind the killing of her sister Sheena.<br/><br/>