S. 35 : Expenditure on scientific research-Accommodation entries-Survey-Office bearers of done society admitted that in the course of survey and also before Settlement Commission that they are providing accommodation entries by way of bogus donations in an organised manner-Not entitle to deduction-Notice issued under section 143(2) is valid-Reassessment is valid. [S. 35(1)(ii), 133A,143(2), 147, 148]