In a pan pour 1 tsp oil and add cumin seeds,Rai seeds,heeng and groundnuts to it. Roast is for 2 minutes. Keep it aside.let it cool down.

In the same pan add 1/2 tsp oil and roast curry leaves for 1 minute. Let it cool down.

In a jar add all ingredients (water) and make a fine paste. Add 2 tbsp lemon juice to it. It's ready to serve.