In legal terms, a natural born citizen is a citizen who didn’t have to be naturalized in order to become a citizen. Since Nimratta did not have to go through a naturalization process, she is a natural born citizen and this issue becomes moot.
If your parents are foreigners when you are born, Jindal, Obama, Harris etc. you are not NBC because you have a choice in citizenship. A NBC has no choice, but you have described one example.