Homemade Sambar powder

1 cup of coriander seeds
(Roast till it pops up and strong smell starts coming)
1/4th cup of mustard seeds
(Roast till it pops up)
1/4 th cup of fenugreek seeds
(Roast till it pops up and light brown. Do not burn it)
1/4th cup of chana dal
(Roast till pale red)
1/4th cup of tuvar dal
(Roast till pale red)
1/4th cup of udad dal
(Roast till pale red in colour)
2 tsps of pepper corns
(Roast lightly till is pops up)
1-2 cups of dried red chillies
(Microwave on high power for a minute or two just to heat it up)
2 tsps of turmeric powder
(for finishing touch)

Note: for 6 tbsps of coriander seeds use 10-15 dried red chillies
Other method is to grind all the above except dried red chillies.Grind red chillies separately. red chilli powder should be half the measure of all other ground ingredients.