Mix the gram flour along with the other listed ingredients and water just sufficient to make a thin (but not too watery) batter.
Heat about 3-4 tablespoons of oil in a pan and pour out a small portion of the above batter in it and spread it in the pan just as one would do for the omelette.
Keep it on a low flame, pour about 1/2 teaspoon of oil all around the spread batter and put a lid on the pan to cover it.
After about 4-5 minutes, remove the lid and check to see if the omelette has started puffing at the bottom.
Now turn around the omelette on the other side - if the pan is becoming dry, you could pour another 1/2 teaspoon of oil around the omelette again.
Continue to cook on a low flame till this side is also crisp and becomes golden brown.
The All Vegetarian omelette is ready to be served.