Which state government has decided to celebrate “Lachit Divas” to promote the ideals of Lachit Borphukan?

The Assam government has decided to celebrate 'Lachit Divas' to promote the ideals of Lachit Borphukan; the legendary general of Assam's history. Lachit Borphukan was a commander in the Ahom kingdom in Assam known for his leadership and valour in the 1671 Battle of Saraighat.