You're the one trying to make the case that eating lead is a good cure for a subset of ailments, so read it yourself and answer here what those ailments are. If you can be bothered to read your own source. We can then verify from reliable sources whether the claims and evidence you provide are reliable.

Non-medical professionals can describe the mechanism of action for radiation therapy. Non-professional ayurvedic advocates should at least know how eating lead helps cure the ailments it claims to.

> many governments in the Indian subcontinent and a lot of people in the subcontinent believe that there are [medical applications for eating lead]

Many people (and governments) believe in invisible sky magicians, but their belief isn't science, and doesn't make it true.