In which of the following months does H join the office?

From the information given in the question, we can have the following table:
Eight people, viz A, B, C, D, E, F, G and H are sitting in a straight line facing North. Each of them has passed a recruitment exam and must join the office in different months, viz January, February, March, April, May, June, July and August but not necessarily in the same order.
Hence , H join the office in February month .