What is the Baby Ariha case over which India raised concerns with Germany?

Ariha Shah has been in foster care in Germany since September 23, 2021, when she was barely seven months old. At the time, German authorities alleged Ariha's parents, Dhara and Bhavesh, had abused her. After investigation, assault charges were dropped but authorities accused them of negligence. The case against them was closed in February 2022. Despite this, Ariha wasn't returned.