The tijori should face North, but my small cupboard only opens to the South; can a mirror be used?
Yes, a mirror can be used, and East is also acceptable. Better still, place the tijori where it faces correctly, because it receives the energy of whatever it faces; facing Kuber's direction it receives Kuber's energy.
Related questions
Can a mirror be fitted on a wardrobe in the S, SSW, SW, WSW or West?
No. Wardrobe mirrors also belong on the North or East wall. Some say the North-West is also allowed because the mirror represents the water element and the Moon.
If the dressing room is in the SSW, can a mirror not be used there?
A dressing room has four walls, so fix the mirror on its North or East wall. If the wash basin is already in the South and its mirror must be there, fix a mirror of the same size on the North wall; the pit made in the South is matched by one opposite and the effect evens out.
Can a nandavart dwar be made in a flat?
Yes, it can be made in a flat too.
Does the tijori zone also apply inside a room, and which way should the tijori face?
Keep the tijori in the zone given for it and make it face North. A room in the SW, say 12 by 15 feet, is entirely SW, not only its corner; it has four walls, so keep the tijori against the South wall and it will face North.
Must the house be at 0 degrees for a sarvatobhadra dwar?
By definition it is at 0 degrees with doors in all four directions, but it can be made otherwise too: build the doors on whichever pads fall on Pushpdant, Grihakshat, Bhallat and E4.
A family with an N4 door has had only boys across generations. What can be done for a girl child?
N4, like N3 and W4, is a door that brings sons. Open an E2 door, which brings the birth of daughters. A home without a daughter is not a complete home.