I guess your blood sugar results will tell you whether your body could cope with it? Depending on what else you had in the way of carbs at the same time? That's 21g of carbs in the jar.
Sounds like that is almost the same carb count as the low carb company's version (7.2g instead of 6.5g)
Maybe the portion size is an issue here? The manufacturer's website claim that the 350g jar is four portions.... It might work better if @Nodemus didn't use the whole jar? (Though personally I agree that you want lots of sauce, it's the best bit. )
Hey, I find stuff from Pataks have a later spike in sugars. It's easier to make your own as the recipe is super simple. You can caramelise the onion (no sugar) and then you've got it down. If you batch a lot (as most of it is yoghurt, tomatoes and fresh onion and garlic) with fresh ground garam marsala, citric (lime or lemon), salt.
Another surprisingly easy Indian side dish or entre dish is microwave cauliflower (in a lekue) and sprinkling tandoori spice (red) on top. Just dribble over some olive oil serve. Optional is microwave and then high grill pan. Super low carb. Here's a more advanced version to stave away those curry pangs: https://www.gohealthyeverafter.com/easy-roasted-tandoori-cauliflower-wings/