Meanwhile, for the tempering, heat oil in a saucepan/kadai over high heat. When the oil is hot enough (test by dropping a mustard seed or two), add mustard seeds. When the seeds start spluttering, reduce the heat to medium, add urad dal, curry leaves and chopped green chillies and cashews
sauté until urad dal and cashews are golden brown. Add hing, switch off and keep aside.
Do not mix yogurt with hot rice as it splits the yogurt.
Preferably do not use Basmati rice