Semecarpus anacardium is very close relative of cashew/Anacardium occidentale nut...
This available all over India....and got some hypoglycemic effects.
It is considered very useful herb in Ayurveda.However Ayurveda also hints for use of this with caution as this is very sharp and effective.
But it is safe to use its seeds which is called as Godambi.
In Maharashtrian traditional homes Godambi is given to lactating woman for its nutritious qualities.