S. 9(1)(i) : Income deemed to accrue or arise in India-Business connection-Capital gains-Shares/units, transfer-Capital gain on sale of equity shares that arose from conversion of cumulative convertible preference shares (CCPS)-CCPS were issued prior to 1-4-2017 but conversion took place after said date, capital gain derived from sale of such shares would not be covered under article 13(3A) or 13(3B) but under article 13(4) of India-Mauritius DTAA-Exempt from taxation-DTAA-India-Mauritius [S. 45, 90, art. 13(3A), 13(3B)]