Yes Anuj do use to include Shah family members but one thing u should not forget it was majorily coz of anupama's happiness, kuch company asar , Anuj ko koi fayda nhi tha Shah family se jur ke , he only got humiliated by them . If there was no anupama Anuj would had given hard time to Shahs , usne kaha bhi hai serial mein.
CA bahut chhoti ti so she used to consider Shah's as family vo bhi anupama ki vajah se , Varna she too would had never known about Shah family.
Anupama is d link who joined them to Shahs

16