First coarsely grind poha in mixer but do not grind fully (powder form).Take a big bowl add tamarind juice,rasam powder and jaggery,salt and mix it well,then soak the powdered poha in the bowl for 15 mins.Take kadai add four spoons of oil then add mustard seeds,chanaDal,urad Dal,Turmeric, asafoetida,allow it to crackle then add curry leaf,add ground nuts and roast until it turns light brown and then add the soaked poha to it and mix well.keep it in sim for 10 mins the and turn off the flame.