I have learnt to make this paste at home.Please check out the recipe for tamarind paste here.
Method :Pressure cook rice.Keep aside.
In a small thick bottomed vessel ,take the tamarind & add 1 cup water.Heat it & bring to boil.Drain the thick water containing tamarind pulp.Take the tamarind pulp taste,add fenugreek powder, rasam powder ,red chilli powder & jaggery.Boil the pulp some more time till it becomes paste consistency.Keep aside.
In another vessel ,prepare seasoning.Add oil & heat it.Add mustard seeds.When they splutter add urad dal followed by chana dal.When they become golden brown ,add peanuts.After peanuts change colour ,add green chillies & curry leaves.Lastly add red chillies & hing & haldi.Put off the gas.
Spread the cooked rice on to a plate.Add the tamarind paste & the seasoning & salt.Mix nicely all rice & the tamarind paste & seasoning.The lip smacking puliogare is ready !