1. Take buttermilk in a large vessel.
2. Add salt, soda and flour and mix well.
3. As the mixture begins to froth, cover and set aside for 6-7 hours for fermentation.
4. Grate the bottle-gourd or zucchi and squeeze out all excess water.
5. Do this after the fermentation is done, as leaving bottle-gourd in air oxidizes it and makes it turn brown.
6. Now add all the vegetables, bottle-gourd, spices and green chillies to the flour mixture.
7. Heat oil in a pan, add urad & channa dals, and the mustard seeds.
8. Allow to splutter, then pour half of it into the batter and mix thoroughly.
9. Pour the mixture into a steel or aluminum container.
10. Place in a Steam Cooker and cook like idlis, for about 25-30 mins, then check to make sure it's cooked through.
11. Remove from flame and keep it covered for another 7-10 mins.
12. Once cooled, you can slice it into wedges.

For Individual Pancakes:

• You can even drop pancake-sized portions in a greased covered cook-top sauce pan instead of the oven, and let it cook for 10 mins, or until done.
• Its a little time-consuming, but works great when you want to dazzle your guests!

Courtesy: http://funnfud.blogspot.com/