Bus Window Glass Suppliers Delhi: Sliding, Fixed & Emergency Exit Glass Solutions

Delhi’s public transport network is the lifeline of the National Capital Region. Every day, thousands of buses—from Delhi Transport Corporation (DTC) fleet to private operators and interstate transport corporations—carry millions of passengers across the city and beyond. At the heart of every bus lies a critical component that ensures passenger safety, comfort, and visibility: the windows.

Whether you are a bus body builder, a fleet operator, or a transport corporation looking for reliable glass solutions, finding trustworthy bus window glass suppliers Delhi is essential. This comprehensive guide explores everything you need to know about bus window glass solutions—from sliding and fixed windows to emergency exit glass—and helps you find the best suppliers in Delhi.

The Growing Demand for Bus Window Glass in India

India’s bus transportation sector is expanding rapidly. According to industry reports, the Indian automotive glass market was valued at USD 948.73 Million (Rs. 8,347 crore) in 2025 and is projected to reach USD 1,433.66 Million (Rs. 13,189 crore) by 2034, growing at a compound annual growth rate of 4.30%. The bus segment represents a significant portion of this market, driven by:

Expanding public transport networks – State transport undertakings are continuously adding new buses to their fleets
Private bus operators – Growing demand for intercity and intracity bus services
Bus body building industry – Delhi and surrounding regions host numerous bus body manufacturers
Replacement demand – Existing buses require regular glass replacement due to wear and tear

AIS Windshield Experts recently expanded its network to 28 centres across Delhi NCR, opening new locations in Noida Extension, Greater Noida, Dilshad Garden, Mayur Vihar, and Narsinghpur (Gurugram). This expansion reflects the growing demand for automotive glass services in the region, including commercial vehicles like buses and trucks.

North India’s Leadership in Automotive Glass

The North India region leads the automotive glass market with a share of 32.0% in 2025, driven by concentrated automotive manufacturing hubs, established OEM supply chains, and strong vehicle assembly presence. Haryana and Delhi NCR, in particular, have emerged as the preferred destination for automotive glass manufacturing and supply.

Types of Bus Window Glass Solutions

Bus windows come in several configurations, each designed for specific applications and safety requirements.

Window Type	Description	Primary Application	Key Features
Laminated Glass	Two glass layers bonded with a PVB interlayer	Windshields for buses	Cracks but stays bonded on impact; prevents occupant ejection
Toughened Glass	Heat-treated glass, 4-5 times stronger than ordinary glass	Side windows	Breaks into small, blunt pieces; highly impact-resistant
Sliding Windows	Windows that slide horizontally or vertically	Passenger windows in buses	Provides ventilation; can be opened by passengers
Fixed Windows	Permanently sealed windows	Passenger windows	Maximum structural integrity; no moving parts
Emergency Exit Windows	Push-out or break-out windows	Emergency egress	Quick opening in emergencies; meets safety regulations
Aluminium Window Frames	Pre-assembled frames with glass fitted	Complete window units	Saves installation time; ensures consistent quality

Laminated Glass for Windshields

Laminated glass is the standard for bus windshields. It consists of two glass layers bonded together with a PVB (polyvinyl butyral) interlayer. When impacted, the glass cracks but the PVB layer holds the pieces together, preventing them from entering the cabin. This is particularly critical for bus drivers who need protection from flying debris and for passengers in case of accidents.

DURATUF’s laminated windshields for buses are manufactured to the highest safety standards, with the company producing glasses as large as 1.83 m by 2.6 m for buses.

Toughened Glass for Side Windows

Toughened (tempered) glass is heat-treated to be four to five times stronger than ordinary glass. When it breaks, it shatters into small, blunt granules rather than sharp shards, reducing the risk of injury. DURATUF’s side window glass for buses is toughened to handle constant vibration, repeated opening and closing, and exposure to sun and rain.

Toughened glass used in automobiles offers high safety in case of breakages and is scratch resistant.

Sliding Windows

Sliding windows are a common feature in many buses, providing ventilation for passengers. These windows slide horizontally or vertically within a frame, allowing passengers to control airflow.

Features of sliding bus windows:

Available in larger sizes
Fully framed sliders for better vibration resistance
Heavy-duty profile for durability
Glass choices: Clear, coloured, flat, or curved
Any combination of fixed and sliding windows

Sliding windows are particularly popular in urban buses where passenger comfort and ventilation are priorities.

Fixed Windows

Fixed windows are permanently sealed in the bus structure. They offer maximum structural integrity and are typically used in areas where ventilation is not required or where sliding windows would compromise safety.

Fixed window features:

Sealed permanently in the bus structure
No moving parts, reducing maintenance needs
Excellent structural integrity
Often used in combination with sliding windows

Emergency Exit Windows

Emergency exit windows are a critical safety feature in all buses. These windows are designed to open quickly in emergencies, allowing passengers to evacuate the vehicle.

Types of emergency exit windows:

Push-out windows – Designed to open outward to provide for emergency egress
Break-out windows – Designed to be broken in emergencies using emergency hammers

Safety requirements for emergency exit windows:

Each push-out window or other emergency exit must be capable of being opened from inside the bus
Windows must comply with AIS-068 standards, which regulate window design and glazing, ensuring proper ventilation, emergency access, and accident safety
Broken windows with tempered glazing also provide escape routes in cases of accidents or fires

Aluminium Window Frames

For bus body builders, pre-assembled units offer significant advantages. DURATUF’s aluminium window frames for buses come with glass already fitted inside the frame at the factory. This eliminates the need for on-site cutting, sealing, and adjustment, saving time and ensuring consistent quality.

DURATUF started manufacturing aluminium windows for urban bus applications where high technology is deployed to design and manufacture custom-built windows complying with production specifications.

Leading Bus Window Glass Suppliers in Delhi

DURATUF Glass Industries

DURATUF Glass Industries is one of India’s leading flat and curved glass producers. Established in 1992 at Bahadurgarh (Haryana), near Delhi, the company supplies glass and glazing products for buses and LCVs both in India and abroad under the brand names DURATUF and DURASAFE.

Key Highlights:

Corporate office located in Delhi at 25 Paschim Vihar Extn., Opp. Ordinance Depot, Rohtak Road, New Delhi
Conglomerate of seven manufacturing units located in Delhi, Haryana, Indore, and Bangalore
Bangalore Safety Glass Works Pvt. Ltd. (BSGW) was started by the group in 1996 in the Bommasandra Industrial Estate, Bangalore, to establish its presence in southern India
Products exported to Bangladesh, Sri Lanka, and Nepal
Produces glasses as large as 1.83 m by 2.6 m for buses

OEM Customers:
DURATUF’s glasses are trusted by leading vehicle OEMs including Ashok Leyland, Tata Motors, Volvo, SML Isuzu, Eicher, M&M, Scania, Bharat Benz, and HM as well as bus body builders like ACGL, JCBL, Azad Coach, Irizar TVS, Sutlej, etc.

STU Segment:
In the State Transport Undertaking (STU) segment, DURATUF caters to KSRTC, MSRTC, TNSTC, APSRTC, RSRTC, Haryana Roadways, and others.

Product Range:

Side window glass for buses – toughened glass for constant vibration and daily wear
Laminated windshields for buses – two glass layers bonded with a PVB interlayer
Aluminium window frames for buses – pre-assembled units with glass already fitted
Automotive glass for cars – comprehensive range for passenger vehicles
Bullet-proof, high-strength glasses for security enclosures

Learn more about DURATUF’s journey and explore their comprehensive solutions across automotive, earth movers, bulletproof, railway, and architectural segments. Contact DURATUF for inquiries about their comprehensive range of bus window glass solutions.

AIS Windshield Experts

AIS Windshield Experts is India’s largest automotive glass repair and replacement company. As a subsidiary of Asahi India Glass Ltd—India’s leading glass manufacturer—the company brings decades of expertise to every service.

Network Presence:

28 service centres in Delhi NCR – the largest network in the region
Over 115 centres across 67+ cities nationwide
ISO 9001:2015 certified company

Commercial Vehicle Services:
AIS Windshield Experts provides windshield services for a wide range of vehicle types, including autorickshaws, buses, and trucks. Each facility offers windshield repair and replacement, insurance claim assistance, certified technicians, high-quality materials, and pan-India warranty-backed door-to-door service.

Asahi India Glass Limited (AIS)

Asahi India Glass Limited , headquartered in Gurugram, Haryana, is India’s leading integrated glass solutions company. Founded in 1984, AIS has established itself as the dominant player in the automotive glass segment with a 75% market share in the Indian passenger car automotive glass segment.

Commercial Vehicle Products:
AIS’s auto glass products are used in the manufacturing of passenger and commercial vehicles, including trucks, buses, railways, metros, tractors, and off-highway vehicles. The product range includes:

Laminated windscreens
Tempered sidelites
Backlites
Sunroofs
Rain-detector and heated windshields

Other Notable Suppliers

Kitty Glass – Manufacturer of transparent bus window glass available in various thicknesses (2, 2.5, 3, 5, 8, 12 mm), based in New Delhi
Hi-tech Glass Industry – Manufacturer of auto glass, auto safety glass, automobile window glass, automotive windshield, and bus window glass
King Diamond Glass Company – Trading automotive mirror glass including bus rear view mirrors, based in Delhi

Safety Standards for Bus Window Glass in India

Bus window glass must comply with stringent safety standards to ensure passenger protection.

IS 2553: The Primary Standard

The Bureau of Indian Standards (BIS) has established IS 2553 as the primary standard for safety glass used in motor vehicles:

IS 2553 (Part 1):2018 – Classifies safety glass into Toughened (Tempered) and Laminated Safety Glass
IS 2553 (Part 2):2019 – Specifies requirements for safety glass used in road transport

The standard applies to safety glazing intended for installation as windscreens and windowpanes on Category M, N, A (fitted with cabin), C (fitted with cabin), Combine Harvester, and L (with bodywork) vehicles. Good quality windscreens maintain the driver’s visibility and do not cause injury during accidents.

AIS-068: Bus Window Safety Standard

AIS-068 is a specific standard for windows fitted on buses, ensuring proper ventilation, safety glazing, emergency accessibility, and protection against accidents. This standard regulates window design and glazing, ensuring proper ventilation, emergency access, and accident safety, which enhances passenger security.

Central Motor Vehicles Rules (CMVR)

Windscreen glasses shall meet the requirements of BIS 2553: Part II-1992 or latest and that of CMVR and Bus Code. The glazing used for fitment of glasses shall be Ethylene Propylene Die Monomer (EPDM) rubber of black colour or pasted with adhesive material conforming to Indian/International Standards.

Why Standards Matter

Non-compliant glass can:

Fail to protect passengers during accidents
Shatter dangerously upon impact
Provide inadequate visibility in adverse conditions
Result in legal liabilities for bus operators and body builders

When choosing a bus window glass supplier in Delhi, always verify that they use certified glass that meets IS 2553 and AIS-068 standards.

Commercial Bus Glass Bangalore: The Southern Connection

While Delhi is a major hub for bus window glass supply, the demand extends across India. Commercial bus glass Bangalore represents the growing demand in southern India, with several manufacturers serving this market.

DURATUF’s Bangalore Operations

To establish itself in southern India, Bangalore Safety Glass Works Pvt. Ltd. (BSGW) was started by the DURATUF group in 1996 in the Bommasandra Industrial Estate, Bangalore. This facility serves the southern Indian market under the brand name DURATUF.

Other Bangalore-Based Suppliers

Impact Glass – Has a 35,000 square metre production facility in Bangalore with a daily capacity of 100 large glasses to cater to the bus segment and 500 small windscreens for smaller vehicles
Various other manufacturers and suppliers of bus window glass in the Bangalore region

Industrial Vehicle Glass Solutions India

The demand for industrial vehicle glass solutions India extends beyond passenger buses to include construction equipment, agricultural machinery, and off-highway vehicles. These vehicles operate in some of the harshest environments, requiring specialized glass solutions.

Applications of Industrial Vehicle Glass

Construction equipment – Backhoe loaders, excavators, and loaders
Agricultural machinery – Combine harvesters and tractors
Off-highway vehicles – Mining equipment and specialized vehicles
Railways and metros – Train windows and cabin glass

Leading Suppliers of Industrial Vehicle Glass

Asahi India Glass Limited (AIS) provides industrial glass including consumer durable glass products and construction and farm equipment, offering customized solutions. AIS’s auto glass products are used in the manufacturing of passenger and commercial vehicles, including trucks, buses, railways, metros, tractors, and off-highway vehicles.

DURATUF offers specialized glass solutions for earthmover equipment through its comprehensive solutions page, including:

Glass for backhoe loaders
Glass for combine cabins
Glass for tractor cabins
Glass for hydra cabins

Future Trends in Bus Window Glass

1. Smart Glass Technology

The integration of smart glass technologies is transforming the bus industry, including switchable glass for privacy and comfort, and solar control glass for temperature management.

2. Lightweight Materials

Manufacturers are developing lighter glass solutions to improve fuel efficiency without compromising safety.

3. Enhanced Safety Features

Advanced safety features including improved emergency exit mechanisms and better impact resistance are being incorporated into bus window designs.

4. Sustainability Focus

Environmental concerns are driving innovation in eco-friendly manufacturing processes, recyclable glass materials, and energy-efficient production methods.

5. ADAS Integration

Advanced Driver Assistance Systems are increasingly being integrated into buses, requiring specialized windshields with ADAS mounting brackets.

How to Choose the Right Bus Window Glass Supplier in Delhi

1. Check Certification and Quality Standards

Ensure the supplier uses BIS-certified glass that meets IS 2553 (Part 2):2019 and AIS-068 standards. Verify that the glass complies with CMVR and Bus Code requirements.

2. Verify OEM Approvals

For bus body builders and fleet operators, choose suppliers that are approved by leading OEMs. DURATUF’s glasses are trusted by Ashok Leyland, Tata Motors, Volvo, SML Isuzu, Eicher, M&M, Scania, Bharat Benz, and HM.

3. Check Product Range

Ensure the supplier offers a comprehensive range of bus window glass solutions, including:

Laminated windshields
Toughened side windows
Sliding windows
Fixed windows
Emergency exit windows
Aluminium window frames

4. Consider Manufacturing Capability

Choose suppliers with adequate manufacturing capacity to meet your volume requirements. DURATUF is a conglomerate of seven manufacturing units located in Delhi, Haryana, Indore, and Bangalore.

5. Evaluate Service and Support

Look for suppliers that offer after-sales support, warranty, and technical assistance.

6. Consider Location

Choose suppliers with convenient locations or those that can deliver to your facility. DURATUF has its corporate office in Delhi and manufacturing units across India, ensuring efficient supply to Delhi NCR and beyond.

Frequently Asked Questions (FAQs)

1. What types of bus window glass are available from Delhi suppliers?

Delhi suppliers offer a comprehensive range of bus window glass including laminated windshields, toughened side windows, sliding windows, fixed windows, emergency exit windows, and aluminium window frames. DURATUF manufactures laminated windshields for buses, side window glass for buses, and aluminium window frames for buses.

2. Which are the leading bus window glass suppliers in Delhi?

The leading bus window glass suppliers Delhi include DURATUF Glass Industries (established in 1992, with corporate office in Delhi and seven manufacturing units across India), AIS Windshield Experts (28 centres across Delhi NCR), and Asahi India Glass Limited (headquartered in Gurugram, Haryana).

3. What safety standards apply to bus window glass in India?

Bus window glass must comply with IS 2553 (Part 2):2019 from the Bureau of Indian Standards (BIS) , along with AIS-068 standards for bus windows from the Ministry of Road Transport and Highways. Glazing materials must conform to Indian/International Standards.

4. What is the difference between laminated and toughened glass for buses?

Laminated glass is made from two glass layers bonded with a PVB interlayer. It cracks on impact but stays bonded together, making it ideal for windshields. Toughened glass is heat-treated to be stronger and breaks into small, blunt pieces rather than sharp shards, making it suitable for side windows.

5. What are emergency exit windows, and why are they important?

Emergency exit windows are designed to open quickly in emergencies, allowing passengers to evacuate the vehicle. Push-out windows are designed to open outward to provide for emergency egress. They must comply with AIS-068 standards for safety and emergency accessibility.

6. Which OEMs trust DURATUF for bus window glass?

DURATUF’s glasses are trusted by leading vehicle OEMs including Ashok Leyland, Tata Motors, Volvo, SML Isuzu, Eicher, M&M, Scania, Bharat Benz, and HM, as well as bus body builders like ACGL, JCBL, Azad Coach, Irizar TVS, and Sutlej.

7. What is the market outlook for bus window glass in India?

The Indian automotive glass market is projected to grow from USD 948.73 Million in 2025 to USD 1,433.66 Million by 2034, at a CAGR of 4.30%. The bus segment represents a significant portion of this market, driven by expanding public transport networks and replacement demand.

8. How can I get bus window glass for my fleet in Delhi?

You can contact leading suppliers like DURATUF through their contact page or visit their corporate office in Paschim Vihar, Delhi. AIS Windshield Experts also offers commercial vehicle glass services at their 28 centres across Delhi NCR.

9. What is the role of aluminium window frames in bus construction?

Aluminium window frames with pre-fitted glass offer a complete solution for bus body builders, eliminating the need for on-site cutting, sealing, and adjustment. DURATUF’s aluminium window frames for buses are custom-built to comply with production specifications.

10. How is the government supporting the automotive glass industry?

The Indian government has introduced the Production Linked Incentive (PLI) Scheme for Automobiles and Auto Components to boost domestic manufacturing of advanced automotive technology products. The government also mandates safety standards like IS 2553 and AIS-068 to ensure passenger safety.

Conclusion

Delhi has firmly established itself as the hub for bus window glass suppliers, with major players like DURATUF and AIS leading the way in manufacturing glass for buses and commercial vehicles. The city’s strategic location, proximity to manufacturing hubs, and extensive transport network make it the preferred choice for bus window glass requirements across all segments.

Whether you are seeking sliding windows for passenger comfort, fixed windows for structural integrity, emergency exit windows for passenger safety, or complete aluminium window frame assemblies, Delhi’s suppliers offer the quality, reliability, and innovation you need.

When choosing a bus window glass supplier, look for BIS certification, OEM approvals, comprehensive product range, and reliable service support. With the right supplier, you can ensure passenger safety, regulatory compliance, and peace of mind for all your bus window glass requirements.

For inquiries about DURATUF’s comprehensive range of bus window glass solutions, contact them or visit their about page to learn more about their journey since 1992.