Boil potato and chickpea together for 5-6 whistles on medium flame.
Mash potato and chickpea together.
Add salt,chat masala, redchili powder and coriander leaves .
Mix them well.
keep it aside.
for garlic water:
crush all ingredient except water into a smooth paste.
add water in crushed paste.
mix well and keep it aisde.
tamarind water:
mix tamarind pulp and jaggery until disolve. you can even boil it for 5 mins on medium flame so that jaggery/ sugar can dissolve fast.
add salt and other masalas.
add water and mix it well.
keep it aside.
for teekha pani/mint pani:
In a blender add all the ingredients mentioned above for the pani.
Add little water and grind to a fine chutney.
Remove the green chutney in a large bowl. Add 2 to 3 cups water. Mix well. Check the seasoning. Add more black salt or jeera powder or chaat masala if required. If you want a thin pani, you could add some water. But keep on checking the seasoning, as per your taste.
Add the boondi to the pani.
You can chill the pani in the fridge.
Assembling:
Crack the top of the puri using your thumb finger or spoon.
Add 2 to 3 tsp of the boiled potato-chickpea stuffing filling in the poori.
Add onions and bondi,sev as well.
Stir the green pani first and then it and the sweet chutney as per your taste.
Serve the pani puri immediately.
You can also make individual portions with the puris, potato-chickpea mixture and the pani.
Let the individual assemble the pani puri for himself/herself as per his/her taste.
Video
Notes
For a spicy pani, add about 2 to 3 green chilies as per your taste. Other stuffing combinations:Tempered moong sprouts , boiled white chickpeas (kabuli chana) boiled potatoes with chopped onions and chopped coriander leaves , ragda. - white peas preparation.
* to make the pani hot and spicy, you can add one more green chili. you can use green chuntney and tamarind chutney as pani by adding water and salt into that.
I am using ready-made puris here.check out my tutorial on how to make golgappa puris HERE