Take a bowl and add gram flour and rice flour.
Then add turmeric powder, coriander powder, cumin seeds, black pepper powder, red chili powder, asafoetida/hing, carom seeds/ajwain, green chilies, ginger paste and salt.
NOTE : You can add finely chopped seasonal vegetables and onion as well.
Give them a good mix.
Now start adding water but little at a time. You need to make a thick battle out of it.
Then add green beans/hare chane and coriander leaves.
NOTE : In winters, it is generally made with green beans and in summers, mostly with overnight soaked black chickpeas/kala chana.
Mix well.
Spread few drops of oil on non stick tawa or pan. It is just a pancake size and not to much bigger.
NOTE : Traditionally it is made in mustard oil but you can make it in any oil of your routine cooking. Also it can be deep fried as well in the shape of pakodas.
Drop 1-2 ladle full of batter on hot tawa and spread.
Let it cook from one side on low heat.
When the batter slightly firms on tawa, flip it.
Drop some oil on the edges as well and let cook this side too.
After it turns brown from both sides, take off the tawa.
Serve hot with chutney or any dip of your choice.