S. 71 : Set off of loss-One head against income from another-Constitutional validity of sub-S. (3A) of S. 71 inserted by Finance Act, 2017-Income from house property from any other head of income at Rs. 2 lakh – Not violative of Art. 14 and 19(1(g) of the Constitution of India. [S.22, 23, 71(3A) Art. 14, 19(1)(g), 226]