You can have as many NRI/NRO accounts in India but you should have only one designated bank for sale/purchase of shares under the Direct/Portfolio Investment Schemes. RBI guidelines permit NRI investors to designate only one bank authorized by RBI to undertake purchase/sale of shares/debentures through the stock exchange. The client has to give a declaration that he has not obtained RBI permission for sale/purchase of shares under the Direct/Portfolio Investment Schemes through any other bank.