Start with making potato stuffing. For this, heat a pan over medium flame and add 1.5 tablespoon oil to it. Once warm add Asafoetida and mustard seeds. When they crackle, add the curry leaves and sauté for a few seconds. Lastly add Grated garlic, Ginger and green chillies and sauté till the raw aroma fades away.
Add the potatoes, turmeric powder, coriander powder, red chilli powder and salt and mix well. Switch off the heat and let it cool.
Once this has cooled, divide it into 8 equal portions and shape them into round ball.
For outer coating, take a mixing bowl and combine gram flour, turmeric powder, salt, red chilli powder, baking soda, oil and make a smooth batter.
Dip each round ball of the potato stuffing into the batter and coat the mixture well from all sides.
Drop these balls into hot oil and deep fry till they golden brown. Take them out and drain on a kitchen towel.
For assembling the vada pav, slice each pav / bread roll into half and spread some green chutney first, then spread the sweet tamarind chutney and dry garlic chutney inside. Place one vada in each pav and serve immediately with fried green chillies.