This is a problem most vegans face at some point- how to replace egg in cooking. Orgran offers a pretty extensive range of vegan baking mixes and egg replacers. You can bake everything from moist chocolate cakes, brownies, cookies, pastry and shortbread without using any wheat, dairy, egg, yeast or gluten. (They even have a gluten replacer!)
Orgran is available easily in India in Nature's Basket stores in Mumbai, Pune, Delhi, Bengaluru, Hyderabad. The price isn't too bad either- between Rs 210 to Rs 375.