* India: The paisa was the subunit of the Indian Rupee (INR) until 1957, when it was replaced by the naaya paisa (new paisa). In 1964, the naaya paisa was renamed the "paise" (plural) and its value was further redefined. Today, the paise is still used, but it's rarely encountered in everyday transactions.
* Pakistan: The paisa was the subunit of the Pakistani Rupee (PKR) until 1979, when it was replaced by the fils. However, the term "paisa" is still used informally.
* Other South Asian Countries: In some other South Asian countries, "paisa" might be used colloquially to refer to small amounts of money, even if they use different currencies.
Therefore, understanding the context is crucial to determine the exact meaning of "paisa" in a particular situation.