Faluda, like many Indian sweets, can be a heavy, super-sweet affair. There's a place for it, but not during the first days of spring. This version froths puréed raspberries with milk (though you could as easily use yogurt, half-and-half, or melted kulfi ice cream). You could sweeten it as much as you like, layer it with whipped cream, or spike it with ginger and cardamom. This lighter version just adds a garnish of candied ginger, which you could also dice up and add to the basil seed.
'basil seed' on Serious Eats
Nam manglak can be as simple as water, crushed ice, basil seed, and some sweetener. This is ever so slightly more gussied up: flavored with rose, lime, and honey, made effervescent by rosewater. It's an unbeatably refreshing combination for the hot sticky days to come.