We have pointed out, here and here, that the standard narrative about 2016-17 Indian GDP, that its growth was unchanged in Q3 but fell in Q4, is based on a misreading of the data. An application of a standard seasonal adjustment method to the raw figures shows that GDP growth actually declined in Q3 and recovered weakly in Q4.
One could ask the question, does this even matter? The bottom line is to observe that GDP growth in 2016-17 was about 7%, the trend rate for the last decade. Or, you could observe that there was a perceptible slowing in the second half of 2016-17. Why split hairs about differences between Q3 and Q4 and apparently esoteric statistical procedures when the conclusion is entirely clear?