However, it's important to note that "Natkhat" is a more informal term, and you might also encounter "हेज़लनट" (Hazelnut), which is simply the English word transliterated into Hindi.
You could also refer to it as "बादाम" (Badam), which is the Hindi word for almond, although it's not technically accurate since hazelnuts and almonds are different types of nuts.