I know Baking Soda is not the most suitable option to balance vinegar taste in several recipes. Therefore, you can use some of the other techniques shared in this guide to fix the overall taste of your curry or similar preparations. The ideal way to neutralize this sour taste is to add more ingredients or base masala gravy to the preparation. As explained above, the addition of ingredients helps in distributing the sourness equally in the delicacy. The only downside of this method is you will also have to adjust the other flavors later. So, do keep it in mind when you add more ingredients to fix some other flavor.