Paisa (also called pice, pesa, poysha, poisha, and baisa) is a small unit of money. The word means money or wealth. In India, Nepal, and Pakistan, one paisa is 1/100 of a rupee. In Bangladesh, one poysha is 1/100 of a Bangladeshi taka. One baisa in Oman equals 1/1000 of an Omani rial.
The word paisa originates from the Sanskrit word padāṁśa. Padāṁśa means quarter part and unit. The pesa was used in colonial Kenya.

Chaulukya coins were known as Gadhaiya Paise. In India and Pakistan the paisa or pice was equal to 3 pies or 1/64 of a rupee until the 1950's. When these countries switched to a decimal system, the paisa became 1/100 of a rupee.
In languages like Hindi, Bengali, Urdu, and Nepali, the word paisa means money. In East Africa, the word pesa for money is still used. An example is Kenya’s M-Pesa, which means "mobile pesa" or "mobile money."
...currency terms pesa, upeni, mali, khete, tickey all derive from Hindu or Arabic currency terms still in use in what was once called the Erythraean Sea