CSMIA bags CII Platinum Zero Waste rating with 99% landfill diversion
Synopsis
Mumbai's Chhatrapati Shivaji Maharaj International Airport has diverted over 99% of its waste from landfills, earning the CII's highest Zero Waste to Landfill Platinum – Class I Rating for FY2025-26. It now stands among the very few Indian airports handling 50 million-plus passengers annually to hold this distinction — a significant marker as Indian aviation faces mounting pressure to clean up its environmental footprint.
Key Takeaways
CSMIA has been awarded the CII Zero Waste to Landfill (ZWL) Platinum – Class I Rating for FY2025-26 .
Over 99 per cent of the airport's waste is diverted from landfills through integrated systems.
MIAL , the airport operator, is a joint venture with Adani Airport Holdings Limited (AAHL) holding a 74 per cent stake and AAI the remainder.
CSMIA has also transitioned to 100 per cent renewable energy and improved energy efficiency by over 40 per cent .
The airport holds the ACA Level 5 Carbon accreditation and is among a select group of Indian airports handling over 50 million passengers annually with this certification.
Chhatrapati Shivaji Maharaj International Airport (CSMIA) in Mumbai has been awarded the Zero Waste to Landfill (ZWL) Platinum – Class I Rating by the Confederation of Indian Industry (CII), the airport's operator Mumbai International Airport Limited (MIAL) announced on Monday, 11 May. The certification, assessed in FY2025-26, recognises that over 99 per cent of the airport's waste is now diverted from landfills through integrated, airport-wide systems.
What the Certification Recognises
The CII assessment verified that CSMIA has deployed best-in-class waste management practices encompassing efficient segregation, recycling, and recovery mechanisms. Key waste streams — including plastic waste, municipal solid waste (MSW) in both wet and dry categories, and other recyclables — have been successfully diverted from landfills. The ZWL framework's objective is to maximise waste diversion while minimising overall generation, and CSMIA's performance in FY2025-26 met the highest threshold under that standard.
How the Airport Manages Its Waste
Primary waste sources at CSMIA include food, plastic, paper, and operational waste. The airport has implemented a value chain–driven approach anchored in the 5R principles — Reduce, Reuse, Repurpose, Recycle, and Recover. This encompasses segregation at source, continuous monitoring, and transfer to authorised recycling facilities, supported by a dedicated Environment and Sustainability team and purpose-built collection infrastructure. The result is a significant reduction in landfill dependency alongside improved waste recovery rates.
MIAL's Ownership and Broader Sustainability Push
MIAL is a joint venture between Adani Airport Holdings Limited (AAHL), which holds a 74 per cent stake, and the Airports Authority of India (AAI). Beyond waste management, CSMIA has accelerated its sustainability roadmap over the past year through a transition to 100 per cent renewable energy, an improvement in energy efficiency of over 40 per cent, electrification of its ground fleet, and strengthened ESG governance. The airport also holds the ACA Level 5 Carbon accreditation, placing it among a select group of globally recognised sustainable airports.
Significance for Indian Aviation
With this milestone, CSMIA joins a narrow group of Indian airports handling more than 50 million passengers annually to have earned the ZWL Platinum certification. This comes amid growing regulatory and investor pressure on aviation infrastructure to demonstrate measurable environmental progress. Notably, the certification positions CSMIA as a benchmark for other high-traffic Indian airports still working toward comparable waste diversion targets.
As CSMIA deepens its sustainability commitments, the airport is positioning itself as a model for future-ready aviation infrastructure in India, with further ESG milestones expected as part of its long-term roadmap.
Point of View
But it also arrives at a convenient moment for Adani Airport Holdings, which has faced scrutiny over its rapid infrastructure acquisitions. The certification shifts the narrative toward environmental stewardship and ESG credibility — both increasingly important for institutional investors and international aviation partners. The harder question is whether this standard, assessed over a single financial year, reflects a durable systems shift or a compliance sprint. With Indian aviation set to double passenger volumes by 2030, the real test is whether CSMIA's waste diversion model can scale proportionally — and whether other AAHL-operated airports replicate it without the same lead time.
NationPress
12 May 2026
Frequently Asked Questions
What is the CII Zero Waste to Landfill Platinum – Class I Rating?
It is the highest certification awarded by the Confederation of Indian Industry (CII) recognising organisations that divert the maximum possible waste from landfills through recycling, recovery, and sustainable waste management systems. CSMIA earned this rating for FY2025-26 after diverting over 99 per cent of its waste.
How does CSMIA manage its waste to achieve 99% landfill diversion?
CSMIA uses a 5R framework — Reduce, Reuse, Repurpose, Recycle, and Recover — combined with segregation at source, dedicated recycling infrastructure, and continuous monitoring by a specialised Environment and Sustainability team. Key waste streams including plastics, municipal solid waste, and operational waste are channelled to authorised recycling facilities.
Who operates Chhatrapati Shivaji Maharaj International Airport?
CSMIA is operated by Mumbai International Airport Limited (MIAL), a joint venture between Adani Airport Holdings Limited (AAHL), which holds a 74 per cent stake, and the Airports Authority of India (AAI).
What other sustainability achievements has CSMIA recorded?
Beyond the ZWL Platinum rating, CSMIA holds the ACA Level 5 Carbon accreditation, has transitioned to 100 per cent renewable energy, improved energy efficiency by over 40 per cent, and electrified its ground fleet as part of a broader ESG roadmap.
Why is this certification significant for Indian aviation?
CSMIA becomes one of the very few Indian airports handling more than 50 million passengers annually to earn the ZWL Platinum certification, setting a benchmark at a time when Indian aviation faces growing regulatory and investor pressure to demonstrate verifiable environmental progress.
