There are some rules and guidelines that should be followed while taking your Digital Passport Photos. The Passport photo size sport must be 45x 35mm. The distance between the chin and the top of the head must be between 29mm and 34mm. The photo must be squared with an upper shoulder in view. The photo should be taken in the last 30 days before applying. The background of the photo should be of cream or light grey color. Headgear is only allowed for religious or medical reasons. Eyes should be visible and open. Prescribed glasses are allowed as long as eyes are visible. The face should have neutral expressions. Avoid smiling.