If we arrange the boxes in alphabetical order from top to bottom (i.e. Box P will be top most and Box X will be on the bottom) then position of how many boxes will remain unchanged?

From(iii), It says Box T is place third from the top. So, T will be places at place no. 7. From (iv), Q cannot be placed at place no. 6 and 8. From (v), Box of Tata and Renault cannot be placed at place no. 9 and 1 respectively. From (ii), there will be two cases: P can be kept at place no. 9 and 8 and U can be kept at place no. 5 and 4. Box of Renault kept at place either on no.  4 or 3. From (iii) and (iv), case 1 will get discarded as there are three boxes are there between the box V and box Q and we don’t have at that place. Case-1 Case-2 From (iii), (v) and (iv), Three boxes are there between the box V and box Q. More than two boxes are there between the box Q and box S which is placed above box U. There are two boxes between Box V and Box of tata. Box Q is not placed just above or below to the Box T but it is placed above Box X. From (iii), Box of Mahindra is kept at place no. 2. From (ii), Box T which placed below the Box of Maruti. Box of Maruti is kept at place no. 9. From (v), Box of Toyota is kept at place no. 7. From (x), Less than three boxes are there between the box of W and R. So, W and R will be kept at place no. 3 and 6 respectively. Box X will be kept at place no. 2. Box of Nissan will be kept at place no. 5. Box of Honda and Skoda will be kept at place no. 8 and 1 respectively. Case-2a From (iii), Box of Mahindra is kept at place no. 6. From (ii), Box T which placed below the Box of Maruti. Box of Maruti is kept at place no. 9. From (v), Box of Maruti is kept at place no. 7. This case will get discarded as less than three boxes are there between the box of W and R which is placed above Box X. Case-2b Final arrangement as shown below: