I thought it looked like a miss-spelt version of "pepper mill" maybe a little lost in translation of accents? (which is how many many many words have come into existance)
Steve
Peepramul is also known as ganthoda not same as sonth (dry ginger) though. It is typically used in powder form with equal mix of ginger powder, jagri and water to help with the gastric troubles and joint pains.
I would suggest it is Indian valerian root (or rhizome, like ginger root).
I don't know anything about, and can't comment about its properties, but would suggest caution.