If Box 3 toffee then how many boxes are placed below Box 6?

Box 2 contains Biscuit and is placed just above Toffee box. 3 boxes are placed between Box 4 and the box that has Choco. Choco box is placed adjacent to Biscuit box and is above Box 4. With the given hints following cases are possible: Box 5 is not placed below Box 2. 2 boxes are placed between Box5 and the box containing Chips. Box1, which is not placed on the top, contains Jelly. Toffee box is placed above Gems box Case2 eliminated as it does not fulfill the last hint. Therefore in absence of further hints, we cannot determine the box number of the boxes at third and fourth positions from top.