Peel mango and chop
Add salt; mix well and marinate for 30 minutes
Heat oil
Add mustard seeds; splutter
Furthermore, add curry leaves and garlic; roast golden brown
Add asafoetida, turmeric powder, chilli powder and Kashmiri chilli powder; mix well saute for 30 seconds
Furthermore, add vinegar and boil
Add raw mangoes and salt; mix well
Finally, add mustard seeds and fenugreek seeds; mix well and saute for 30 seconds
Cool completely then store in an airtight container