Filter Maida in any utensil and keep aside. Make a little crater in the middle of the Maida with your hands. Now put curd, baking soda, salt, sugar and oil in the crater and mix these properly with Maida using your hands.
Put little amounts of water at a time in the mixture and knead Maida. You can feel yourself when the kneaded dough turns very soft and smooth. Cover the dough and keep it aside in a warm place for 2 hours allowing it to ferment.
Make 10 equal sized balls of the dough. Take one ball of Maida, apply dry flour and roll into a round circle(5 to 6 inches in diameter). Spread butter/Ghee on it evenly. Fold the rolled Naan into half(forming a semi circle), then again apply butter /Ghee on this folded section. Now double this fold as it takes the shape of a triangle then apply dry flour to it. Then prepare by rolling it like a parantha on all 3 sides(thinly) and make them ready.
Place this rolled Naan in the Tandoor to cook. After one side turns brown flip the Naan over to the other side. Butter Naan is ready. Take out Butter Naan on a plate and apply Ghee on it, Cut into 2 halves using a Naan cutter. Prepare all Naans in this same manner.
Serve hot Butter Naan with Dal Makahni, Arhar Dal or Shahi Paneer and eat.