Add 250 grams of jaggery to 1 liter of water and heat it for about 15 minutes and make a solution.
When the solution cool, add 3 packets (600 grams) of Rhizobium culture to it and stir gently with a wooden stick.
This solution should be sprinkled slowly on the seeds in such a way that the layer of solution sticks to all the seeds equally. It is enough for 10 kg of seeds.
Wear the gloves in hands and mix the seeds well and dry them in a shady place. Make sure that the seeds do not stick together.