Shred or thinly slice cabbage. Cut the onion in half, then slice thinly.
Peel and coarsely grate the beetroots.
Remove the seeds & veins of the chilli, then chop the flesh finely.
Mix the sliced vegetables in a large bowl, sprinkle the chilli on top.
Dry-fry the cumin seeds until fragrant, then sprinkle over the vegetables.
Mix the yogurt with the garlic & lime juice. Season to taste, then fold in the salad.
Add most of the parsley, toss well.
Taste it, adjust the seasoning & lemon juice according to your taste.
Sprinkle with the reserved parsley just before serving.