Boil 1 cup water first.
Add red chillies to it. Let it soak for 10-15 mins.
Cool down completely then drain the red chillies alone.
Reserve this soaked water. Set aside.
To a mixer jar : add red chillies, garlic and tamarind.
Add little of the reserved soaked water.
Grind it to a slightly fine paste.
To a small kadai heat 1/2 tablespoon gingelly oil add chilli garlic paste.
Rinse the mixer jar with 1/4 cup water.
Add it. Mix it well.
When it starts to boil cook partially covered as it might splutter a lot.
Open give a quick mix then cook covered partially. Repeat this for until raw smell of garlic leaves. It may take 10-12 mins. The chutney starts to thicken too.
Add required salt and jaggery.
Give a quick mix add 1/2 tablespoon gingelly oil.
Give a quick mix and cook for 2 more mins.