If eggs are binders in a recipe, it can be replaced with Arrowroot, Soy, Lecithin, Flax seed meal/powder, Pureed Fruits or Vegetables, Silken Tofu, Unflavored Vegetarian Gelatin Powder (agar agar). The ratio is, for every egg replaced, 1/4 cup of the substitute is used.
If eggs are leavening agents, Buttermilk, Yogurt, Baking Soda, Commercial Egg Replacement Powder such as Ener-G can be used.
If eggs are moisturizers, Fruit Juice, Milk, Water or Pureed Fruit can be used.
At long last, i found this great list of egg substitutes. Good share madhuram. Thanks.