Sambar powder (B)...

INGREDIENTS;

2 tbsp coriander seeds.
10 red chilies.
2 tsp split black gram.
2 tsp split red gram.
2 tsp fenugreek seeds.
1 inch piece asafoetida.
1 inch piece turmeric.
2 tsp dry coconut. (optional)

Roast and powder together and keep in a container. 
Or roast the ingredients separately,  grind separately and mix.