on the aircraft carrying these constitutional officeholders; President, Vice-President, Prime Minister, Chief Justice of India and Lok Sabha Speaker on a visit to a foreign country. Alongside the national flag, the flag of the country visited should also be flown; however, when the aircraft lands in countries en route, the national flags of the respective countries would be flown instead. When carrying the President within India, aircraft display the flag on the side the President embarks or disembarks; the flag is similarly flown on trains, but only when the train is stationary or approaching a railway station. When the Indian flag is flown on Indian territory along with other national flags, the general rule is that the Indian flag should be the starting point of all flags. When flags are placed in a straight line, the rightmost flag is the Indian flag, followed by other national flags in alphabetical order. When placed in a circle, the Indian flag is the first point and is followed by other flags alphabetically. In such placement, all other flags should be of approximately the same size with no other flag being larger than the Indian flag. Each national flag should also be flown from its own pole and no flag should be placed higher than another. In addition to being the first flag, the Indian flag may also be placed within the row or circle alphabetically. When placed on crossed poles, the Indian flag should be in front of the other flag, and to the right (observer's left) of the other flag. The only exception to the preceding rule is when it is flown along with the flag of the United Nations, which may be placed to the right of the Indian flag. When the Indian flag is displayed with non-national flags, including corporate flags and advertising banners, the rules state that if the flags are on separate staffs, the flag of India should be in the middle, or the furthest left from the viewpoint of the onlookers, or at least one flag's breadth higher than the other flags in the group. Its flagpole must be in front of the other poles in the group, but if they are on the same staff, it must be the uppermost flag. If the flag is carried in procession with other flags, it must be at the head of the marching procession, or if carried with a