Uttam Kumar Brajbasi, a 50-year-old resident of Sadial’s Kuthi under Dinhata sub-division of West Bengal, received notice from Assam government accusing him of being an illegal infiltrator. Despite claiming lifelong residency in Cooch Behar and having roots in Bengal, Brajbasi has been asked to prove his Indian citizenship by July 15, or face official declaration as an 'illegal immigrant'.