Small family looking for helper

We are a small Indian (from eastern part of India, Kolkata) family with a 2 year old golden retriever dog looking for a household helper to support us in mainly below tasks:

1. normal household chores

2. taking care (preparing school tiffin, giving snacks and fruits when he is back home, serving meals on time etc.) of a 12 year old school going boy (kind, gentle and quiet natured),

3. taking care of the pet dog (taking him down for daily walks and for peepee/potty and giving food)

4. cooking meals (all kinds acceptable eg. asian, european, indian, indonesian, malysian, japanese)