When a person resident in India leaves India for a country (other than Nepal or Bhutan) for taking up employment, business or vocation outside India or for any other purpose indicating his intention to stay outside India permanently or for an uncertain period, he becomes a person resident outside India. He will have the option of designating his account as Non-Resident Ordinary (NRO) account or Non-Resident (Special) Rupee (NRSR) account.