Mumbai is preparing to introduce India's first non-air-conditioned suburban train equipped with automatic sliding doors, a significant safety enhancement aimed at preventing accidents caused by open-door travel. This initiative follows a tragic incident on June 9, 2023, when five commuters died and nine others fell from an overcrowded local train in Mumbra, prompting a review of railway safety protocols. The new 12-coach rake, constructed at the Integral Coach Factory in Perambur, Chennai, is designed to address Mumbai's unique climate challenges while enhancing safety. It features louvred doors and roof-mounted ventilators to facilitate natural airflow, alongside vestibule connections for easier movement between coaches. Despite these improvements, many commuters are skeptical about the effectiveness of closed-door, non-AC trains in Mumbai's sweltering heat, with temperatures often reaching 41°C during summer. Critics have expressed fears that the trains could become 'human ovens' due to inadequate ventilation. Railway officials have also noted that the door-closing mechanism may initially affect train punctuality, increasing dwell time at stations. Railway Minister Ashwini Vaishnaw announced in September 2025 that all future suburban trains in Mumbai would incorporate closed-door systems, which will be implemented in phases. The new rake will undergo technical checks before being commissioned into service, as the railway seeks to improve safety and comfort for its commuters.