in a thick bottomed kadai, add 4 tsp of oil and roast coriander till they turn fragrant. take off in a plate and keep aside.
now add 2 tsp of oil and fry chana dal, urad dal, jeera on low flame. also add methi and fry till they change colour. take off in a plate and keep aside
finally add 2 tsp of oil and roast red chillis and curry leaves.
allow the fried spices to cool. once cooled, grind everything to a smooth powder adding little hing / asafetida.