His son, King Prithvi Narayan Shah, succeeding him began unification of small principalities to found modern Nepal.
Saint Lakhan Thapa Magar - I, was a spiritually famed associate and adviser to King Ram Shah (1606 - 1636) and priest of Manakamana Temple also.
There is a long description on Lakhan Thapa Magar - I in the Gorkhavamshavali, the only authoritative Genealogy of Shah Kings of Nepal.
Historian Bikramjit Hasrat has also written that Saint Lakhan Thapa Magar - I, ran Gorkha Kingdom administration while King Ram Shah was deep in meditation, tapas[4] for 4 months.
If Kaji Biraj Thapa Magar had not taken such a bold step and risk, some other prince would have become King of Gorkha and there would have been no Prithvi Narayan Shah to unify modern day Nepal.