I don't have that problem with Indian food specifically, but there are a few things that I definitely have (for me arising from the ASD brain) issues of "but I had this once, loved it, and That Is How It Is Suposed To Taste, everything else is WRONG" and it really is quite frustrating sometimes. (Waffles and pancakes are my huge ones for that. There is One Correct Way to make either. I know intellectually that other ways are probably actually pretty tasty? But they are not the right way.)