S. 90: Double taxation relief-Tax-Double taxation relief-Dividend distribution tax (DDT) levied under section 115-O held to be a ‘tax’ on dividend income of shareholders, though collected from distributing company for administrative convenience-Beneficial DTAA rate overrides domestic levy under section 115-O-Levy of DDT in excess of 10% held contrary to India-UK DTAA-Interpretation-Board for Advance Rulings-Gross tax rate in appropriate manner-DTAA-India-UK [S. 2(22), S. 2(24),2(43), S.4, S.90(2), S.115-O, 245Q, 245R, 245W, Art. 1, 2, 11].