In Hindi, the word for "girlfriend" is "गर्लफ़्रेंड" (pronounced as "girlfriend"), which is a direct borrowing from English. It is commonly used to refer to a romantic partner or someone with whom you are in a romantic relationship.
The word for "female friend" in Hindi is "सहेली" (pronounced as "saheli"). It is used to refer to a close female friend, and it emphasizes the platonic nature of the relationship.
Keep in mind that language usage can vary in different regions and contexts, but these are the standard Hindi words for "girlfriend" and "female friend."