Wash the chilies with water and then wipe them well.
Remove the crown from all the chilies and then spread on a cloth and put in sunlight form an hours so all the water dries up completely.
First sun dry fennel,Mustard, Fenugreek seeds,ajwain and cumin seeds for a day or slightly dry roast to remove the moisture.
Now grind all to make a coarse powder.
Take a bowl and add the ground powder and now add all the remaining powders in it and mix well.
Heat te Mustard oil to a smoking point and then let it come to room temperature.
Add oil in the spice mix and mix well. The prepared spice mix should look like a soft dough so add oil accordingly.
Slit the chilies from the center on one side and keep aside.
Now take some spice mixture and stuff tightly in each chili . Same way stuff all the chili with the masala and keep in a large plate.
Heat about a cup of mustard il and then let it cool down completely.
Pour about 1/2 tsp oil over each chili with a spoon ,take care that the masala will not come out from the stuffed chilies.
Now put all the stuffed red chilies in a sterilized ceramic or glass jar.
Tie a muslin cloth on the mouth of the jar and keep it in direct sunlight for a week.if the sunlight is not strong then you may need to keep for some extra time
When the chilies are soften a bit and the colour change to a more deep dark colour then it is ready. Now keep the jar and a cool dry place and keep in sunlight once a month.
Enjoy stuffed red chili pickle with your meal !