[2][3] Siddhinarasima Malla's reign is generally considered one of the finest among the kings of Patan.
[2] He had maintained an agreement with Kantipur such that the merchants from Patan could trade in Lhasa and had a similar arrangement with Gorkha.
[2][3] Siddhinarasimha educated his son Srinivasa Malla from an early age about ruling a kingdom.
This may partly be because of Siddhinarasimha's desires to retire gradually from being a monarch and devote himself to religious activities.
He ritually performed Koti Hom (sacrificial ceremony), and wrote devotional songs in Maithili.