Nilambar (Assamese: নীলাম্বৰ) or Nīlambara (reigned 1480–1498) was the last Khen ruler or Kamadeswar of the Kamata kingdom in Western Assam and North Bengal.
He expanded the kingdom to include the present districts of Cooch Behar in West Bengal and northern Mymensingh in Bangladesh.
[1] He also conquered the Undivided Kamrup and Darrang districts of Assam and the eastern parts of Dinajpur.
[citation needed] Nilambar was interested in communication across the kingdom and invested in a road building program.
[3] In the traditional account, the invasion was instigated by Sachipatra, a disgruntled Brahmin minister whose son had been killed by the king for licentious behavior.