Nagpur: The much-publicised flash-charging electric bus project, touted as a potential first for India, has hit a critical hurdle after the Union ministry of heavy industries (MHI) raised 13 objections covering passenger safety, technology risks and operational feasibility.
In a letter dated May 29, 2026, MHI asked NMC to address observations raised by multiple stakeholders. Backed by Union minister Nitin Gadkari, the project proposes deploying 25-30 articulated electric buses on the city's Inner Ring Road and satellite corridors. The 18-metre-long buses would be powered through overhead flash chargers capable of delivering 400-600 kW charging bursts at designated stops.
The project had earlier received in-principle support from the ministry of road transport and highways (MoRTH), following which Nagpur Municipal Corporation (NMC) floated a tender worth around Rs152 crore.
Among the key concerns is passenger safety during flash-charging operations. NITI Aayog and the ministry of power have sought details on safety protocols for charging buses while passengers remain onboard and recommended compliance with Bureau of Indian Standards (BIS) norms and homologation requirements.
Technical agencies have also raised concerns over the impact of repeated high-power charging on battery life, particularly in Nagpur's extreme summer conditions. Clarifications have been sought on the performance and durability of Lithium Titanate Oxide (LTO) batteries under Indian climatic conditions.
The Department of Economic Affairs (DEA) flagged operational vulnerabilities, noting that failure of a single flash-charging station could disrupt services along an entire route. It also pointed to higher capital costs compared with conventional charging systems and sought details on contingency measures, route diversions and operational flexibility.
Significantly, MoRTH has recommended a phased rollout. Under the proposed approach, a limited number of buses would first be deployed as a pilot project, with expansion contingent on an assessment of operational performance and feasibility.
The ministry has also sought environmental and social impact assessments and directed NMC to establish a monitoring framework with measurable performance indicators to assess the project's economic viability.
With the Centre seeking responses to 13 observations, the high-profile project has entered a critical scrutiny phase before it can secure final approval and move towards implementation.
NAGPUR FLASH-CHARGING ARTICULATED BUS PROJECT
Project: Flash-Charging Electric Articulated Bus System
Implementing Agency: Nagpur Municipal Corporation (NMC)
Proposed Route: Inner Ring Road and satellite city corridors
Estimated Project Cost: Rs152 crore
Proposed Fleet: 25 articulated electric buses
Bus Length: 18 metres
Charging Technology: Overhead flash charging
Charging Capacity: 400-600 kW per charging event
Battery Type: Lithium Titanate Oxide (LTO) batteries
Current Status: Centre seeks clarifications before further approval
KEY CONCERNS RAISED BY CENTRE
Safety
Passenger safety during onboard charging
Safety standards and BIS certification
Homologation compliance
Emergency response protocols
Technical
Battery degradation due to repeated flash charging
LTO battery performance in Nagpur's high temperatures
Reliability of charging infrastructure
Availability of specialised transformers
Operational
Buses may be restricted to designated flash-charging routes
Difficulty in route diversions and emergency redeployment
Dependence on charging stations along the corridor
Need for skilled manpower and spare parts support
Infrastructure
Higher upfront cost than depot-based charging
Power grid load spikes from 400-600 kW charging bursts
Need for power distribution upgrades
Risk of route disruption if a charging station fails
Policy Suggestions
Implement project in two phases
Start with pilot deployment of a few buses
Conduct environmental and social impact assessment
Develop national-level performance monitoring framework
13 OBSERVATIONS AT A GLANCE
Stakeholder | Major Concern
NITI Aayog | Safety standards, battery performance
Ministry of Power | Passenger safety, charging infrastructure
MoRTH | Pilot phase before full rollout
DEA | Economic viability, grid impact, operational flexibility
MoHUA | Transformers, maintenance ecosystem, scalability
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