Northeast Frontier Railway (NFR) has introduced technology-driven on-board services in five superfast trains to improve cleanliness, hygiene and passenger comfort. The initiative covers the Kamakhya–SMVT Bengaluru Express, Guwahati–Kolkata Garib Rath Express, Dibrugarh–Mumbai LTT Express and two Vande Bharat Express services. The upgrades include improved coach cleaning, washroom maintenance, digital monitoring, AI-based cleaning assessments and a two-hour target for resolving passenger complaints.