Full-fat yoghurt

Dahi

weighed in g; no spoon or count conversion

Instead of Full-fat yoghurt

Full-fat natural yoghurt
Use the same weight; it is effectively the same ingredient.
Plain yogurt
Use the same weight; it may be slightly thinner, so strain briefly if the recipe needs a thick yoghurt.
Greek yoghurt
Use 70–80% of the weight and thin with a little milk; it is thicker and tangier.