Rosdeep is to appear at the Edinburgh sheriff court on Monday. Reported to be a beauty therapist, Rosdeep is the daughter of Gurbux, an immigrant from India, who died aged 43 when she was in her teens, and Harjinder, 60.
Mikaeel's body was discovered behind a property in Kirkcaldy, Fife, and taken away by ambulance. A house in the road was searched, along with an area of woodland to the rear and side of the property.
Rosdeep was previously said to be in a relationship with a Nigerian student, with whom she had three children. Mikaeel and Ashika were twins born to Rosdeep and a man of Pakistani origin, reports from Scotland said.
Assistant chief constable of police Scotland Malcolm Graham said: "Following formal identification, I can now confirm that a 33-year-woman who was detained late on Friday evening has been arrested and charged in connection with the death of Mikaeel”.
Hundreds of people attended a memorial service for him on Saturday evening.