Mumbai's public transport system marked a historic milestone in 2025 with the full operational launch of Metro Line 3, the city's first fully underground corridor. The 33.5-km Aqua Line, connecting northern suburbs to southern business districts, became fully functional after its final phase was inaugurated in October 2025. This development signifies a new era of efficient mass transit for India's financial capital, easing road and suburban rail congestion. Separately, concerns were raised regarding a leadership vacuum at the BEST undertaking.