Section 40(a)(ia) Amendment by Finance Act, 2010 are retrospective 

PCIT Vs Crescent Construction Co (Bombay High Court) The purpose of the amendment made by the Finance Act, 2010 is to solve the anomalies that the insertion of section 40(a)(ia) was causing to the bonafide tax payer. The amendment, even if not given operation retrospectively, may not materially be of consequence to the Revenue when the tax rates are stable and uniform or in cases of big assessees having substantial turnover and equally huge expenses and necessary cushion to absorb the effect. However, marginal and medium taxpayers, who work at low gross product rate and when expenditure which ...