If you are making this raita for younger kids, use a light-colored, non-spicy chili. Don't chop the chili finely. Instead, deseed the chili and then cut it in 2 large pieces. Remove the pieces from raita after mixing the raita with chili pieces in it.
Use fresh, sweet curd. Curd that has gone sour won't taste nice in this raita.
Taste the beetroot, if it isn't sweet you can add a pinch of sugar in the raita.