Missing Indian food ! (São Paulo)

Hi, I am a French person with Indian origins. Even though I grew up in France, Indian food has always been a great part of my life. I lived in different cities and there had not been any place were I could not find decent Indian food but here in Sao Paulo I have tried one restaurant (Gopala) and it was disgusting.
I am so desperate to find good Indian food. Dear desis, please share with me your tips (for groceries or restaurants).
Many thanks,
Rabz