Cucumber salads are very popular in India, and this is one of my favorites. Be sure to make this just before serving, otherwise it will become too watery.
Peel, wash, and halve the cucumbers lengthwise. Remove the seeds and finely chop the flesh. Put in a bowl and add the chiles, peanuts, coconut, lemon juice, and sugar, and stir well.
Place a small nonstick sauté pan over medium heat and add the ghee. When small bubbles appear at the bottom of the pan, add the mustard seeds. When they sputter, add the cumin seed