I also have another distinct memory associated with lemon rice. One of eating it at a temple when I was very little. I forgot where or when but that was probably the best lemon rice I have ever tasted. It’s been ages since I have eaten from a temple but if I see it when I pass by, I am grabbing some!
For more authentic South Indian rice recipes, check out this puliogare recipe, thengai sadam (coconut rice), ellu sadam (sesame rice), and carrot rice recipe, an easy lunchbox dish perfect to make a day ahead too.