For Making Kadhi:
First of all in a mixing bowl put curd and gram flour and mix well, make sure that there should be no lumps.
Now add in coriander powder and turmeric powder, again mix it well then add around 600-700 ml water and mix again.
Now heat 1-2 tsp oil in a big kadai, in little hot oil add mustard seeds or rai dana, dry red chilli and cook it little then add crushed fenugreek seeds, curry leaves, when all the spices starts crackling add curd mixture and mix well.
Add little more water if required then add asafoetida and red chilli powder and mix well, cook the mixture till it starts bubbling and stir continuously.
When kadhi starts boiling add ginger juice and mix well, turn the heat off and keep kadhi aside.
For Making Pakora:
In a big mixing bowl put chopped potatoes then add in gram flour, tomatoes, ginger, green chilli, red chilli powder, fennel seeds, coriander powder, asafoetida, baking soda, lemon juice and salt.
Now mix all the ingredients well, add water as per required and make nice mixture from it, make sure that mixture should be little thick.
Heat oil in a deep pan for frying pakoras, when oil gets hot put the mixture with help of spoon in oil and fry it till become nice golden brown, take out the pakora in plate.
Now add pakoras in kadhi and cook kadhi for 4-5 minutes at lower flame, add little salt along with pakoras in kadhi and stir in between.
After 4-5 minutes turn the heat off and garnish it with fresh coriander leaves and serve hot.