On March 11, 2025, India Post released a commemorative stamp sheet featuring five major agricultural products from Bihar that hold Geographical Indication (GI) tags, designed to promote these products globally. ReleMakhana: Fox nuts primarily from the Mithilaabour, the stamp set features unique regional agricultural products.

Key G.I. Products Featured (2025 Stamps):
Katarni Rice: A fragrant rice variety from Bhagalpur.
Jardalu Mango: A distinctive, sweet mango from Bhagalpur.
Shahi Litchi: High-quality litchis from Muzaffarpur.
Maghai Paan: Special betel leaf from the Magadh region.
Makhana: Fox nuts primarily from the Mithila region