Red seedless grape

Angoor

Grapes are weighed here; a medium grape is about 5 g if counted.

Instead of Red seedless grape

Green grape
Use the same weight. It is slightly sharper and firmer, so halve if the recipe needs small pieces.
Sultana
Use the same weight only in cooked dishes. It is sweeter and softer, so plump in warm water first and reduce added sugar.
Red seedless grape
Use the same weight if available; otherwise green grape is the closest fresh substitute.