My small Balti bowl is 300 ml to the brim. 1 cup (250 ml) is as he shows in the video but mine is stainless steel and not identical. It looks to be the same size though unless he has monster hands.
I do agree that his garlic and ginger estimates of 1 tsp are closer to 1 TBSP. It is possible to lift that much out of a jar with a teaspoon.