Cut onion, green chillies and ginger into thin long slices.
Similarly cut carrot in thin long pieces.
Keep the carrots in hot boiling water for a few minutes to make it a little softer.
Put all the ingredients in a bowl.
Add mango pickle to this mixture.
Mix it well.Let it rest fora few minutes.
Instant onion pickle is ready.
Enjoy it with chole bhature, alloo poori or any other dish.