General Studies · Puzzles

Seven boxes, A, B, C, D, E, F, and G, are kept one over the other but not necessarily in the same order. Only three boxes are kept above G. Only one box is kept between F and G. Only three boxes are kept between F and B. B is kept at some place above G. E is kept immediately below B. A is kept at one of the places above D. C is not kept immediately above or below F. How many boxes are kept below A?