The assessment is based on exceptionally strong and consistent evidence. The most authoritative source is a primary one: an official notification banner on the Nifty Gateway platform itself, which explicitly states the platform will close on February 23, 2026. This direct announcement from the company is the most credible evidence possible.This primary evidence is independently corroborated by multiple secondary sources, including news reports from a tech publication, a financial investment site, and a cryptocurrency exchange. All these outlets report the same specific shutdown date. Additional sources, such as a news snippet on a coin information page and a social media post, are also consistent with the announcement, further strengthening the claim. Crucially, there is no conflicting evidence among any of the relevant sources provided. Several sources were correctly identified as irrelevant to the topic—concerning entities like the Federal Aviation Administration, a Japanese stock exchange, and an unrelated company named "Western Gateway"—and were therefore disregarded. The convergence of a direct primary source announcement with unanimous and consistent reporting from multiple secondary sources provides a high degree of confidence in the statement's truthfulness.