NESO observes black day as CAA completes a year The North East Students’ Organization (NESO) observed Thursday as the ‘black day’ across the region as the passage of the Citizenship (Amendment) Act (CAA) in the Parliament completed a year on this day. STAFF REPORTER GUWAHATI: The North East Students' Organization (NESO) observed Thursday as the 'black day' across the region as the passage of the Citizenship (Amendment) Act (CAA) in the Parliament completed a year on this day. The students' organization vowed to carry out a vigorous movement till the CAA that paves the way for granting citizenship to Hindu and other non-Muslim minorities from the neighbouring Bangladesh, is repealed.