S 90: Double taxation relief – Capital gains – Exempt income – Set-off of losses – Carry-forward allowed – No set-off of capital losses against exempt gains permitted- Carry-forward of losses for future years is allowed, subject to that the set-off must be applied only to income which is taxable in India -DTAA -India – Mauritius . [S. 70,74(1),90(2), Art. 4, 13(3B) ,13(4)]