For preparing Kerala Sun Dried Mango Pickle, first dice the mangoes and remove the seeds.
Add mango pieces into boiling water and cook for 2-3 minutes.
Drain it immediately.
Sun dry the mangoes for 2-3 days.
Powder fenugreek seeds and mustard in a mixer grinder.
Heat oil in a vessel, add mustard seeds and add crushed ginger garlic. Saute for 2 minutes.
Add mango, other masalas and salt as required.
Add vinegar and combine well.
Sun dried mango pickle is ready now. When it is cool down, store it in a air tight jar. After 1 or 2 weeks you can start having the mango pickle.