S. 9(1)(i) : Income deemed to accrue or arise in India-Business connection-Functions as selling and purchasing agent-Because the nature of business of trading is a continuous flow of the business process, that cannot be a foundation to conclude a principal-agent relationship for the purpose of art. 5 of the DTAA-There is no PE of assessee in the form of ITPL-DTAA-India-Japan. [S. 90, Art. 5(6)]