Put these raw mango pieces in a bowl and add salt, turmeric powder and water to it and mix well. Keep this mixture in the sun for 4 days.
3
Remove the water from the soaked raw mangoes in a bowl (after 4 days). Now add soaked fenugreek seeds and soaked chickpeas (soaked overnight) in this water. And keep this mixture overnight.
4
Now spread this mixture on a muslin cloth and allow it to dry.
5
Next, add raw mango pieces to it and allow this to dry for a day.
6
In another bowl, mix together salt, yellow mustard powder, fenugreek powder, asafoetida, and deggi mirch powder.
7
Heat mustard oil in a pan and add to the achar masala.
8
In another pan, heat vegetable oil.
9
Remove the dried dry mango, chickpeas, fenugreek seeds mixture in a bowl and mix the achar masala with it.
10
Remove the achar in a glass bottle and pour the vegetable oil over it. Keep this bottle in the sun for 7-10 days.