Sounds like Indian regular Chatani We make that type of thick sauce but with smoked green chilis, garlic, tamarind, little jaggery, salt, and fresh coriander, I imagine the taste you had. sure it is enough spicy taste.
Nice to read about you enjoyed it. greetings🙏.
I like Indian food, although I limit the intake as I find it a little salty. Still, I grew up with occasional Indian food eating, every Sunday at my grandma's house. I miss her cooking.