U will need: Chana daal, Sand
Heat water in a vessel.Let it boil. Add Chana daal. Mix properly. Cook for 2-3 minutes. Switch off the flame. Drain the water & keep chana daal covered for 2-3 hours. Then lay it out on a soft cotton cloth & let it cool. Now heat a kadai (iron). Add sand to it. Dry roast daal along with sand(a little at a time). Separate daal from sand using a sieve. Now grind chana daal to a fine powder. Store in an air tight container. You can easily keep it for 2-3 months.
Tip of the Day: Keep the ratio of water & daal 1:2. For eg, 1/2 kg water for 1 kg daal.
Use natural sand, the one found near river or sea.