(Sorry I picked a huge pictures I just thought they fit.)
This is Sadiya Jacobi-Shafiq, Arun's soon to be 11 year old daughter with his now deceased girlfriend Henrietta. They are really close and  keep each other in line. She lives with her nan (Henri's mother) because he doesn't think she's fit to live with him and his lifestyle. She is going into her first year at Hogwarts this year she would probably be either a Slytherin (her father was one) or a Hufflepuff (her mother was one, but house choice is up to you. She's also the one Arun confides in when he finds someone he thinks (but changes his mind a bit till he does) find the love of his life, this is the one who has to give him the permission to. Mostly because she never got to meet her mother and he wants her to like the person (or persons let's be fair Arun is definitely open to poly) that he likes and he wants her to like them too.
FC: Bailey Bass