India Flue Gas Desulfurization Market Overview, 2031

Key Insights

• According to the research report, "India Flue Gas Desulfurization Market Outlook, 2031," published by Bonafide Research, the India Flue Gas Desulfurization Market is anticipated to add to more than USD 1102.63 Million by 2026-31.
• India's Flue Gas Desulfurization (FGD) market has been shaped by the country's large coal-fired power generation fleet and evolving environmental regulations. Coal-based thermal power capacity exceeds 211 GW across around 600 generating units. Following the July 2025 revision to India's SO₂ compliance framework, market growth is increasingly concentrated on Category A power plants, while ongoing retrofit projects and industrial applications continue to support long-term demand.
• India's FGD market is supported by an expanding domestic ecosystem of engineering and equipment suppliers led by BHEL, L&T, Thermax, ISGEC, and several EPC contractors. Limestone-gypsum wet FGD remains the preferred technology for coal-fired power plants because of its high sulfur dioxide removal efficiency and compatibility with Indian thermal power units. Domestic manufacturing capabilities have improved significantly, although certain high-value components and specialized equipment continue to rely on imports.
• India's steel industry, with FY25 crude steel production of 151.14 million tonnes (up 4.7% year-on-year) and installed capacity of 200.33 MT (projected to reach 300 MT by FY30), continues to generate significant demand for emission-control technologies. Steel plants continue investing in flue gas treatment systems for sinter plants, coke ovens, and other combustion processes to comply with tightening environmental requirements. The steel ministry has sought $1.7 billion from the budget to help mills reduce emissions, and the government is setting tailored emission targets for steelmakers with penalties for non-compliance.
• India's cement industry, the world's second-largest producer, recorded production of 484 million tonnes in 2025, a 9.9% year-on-year increase. Total installed capacity is estimated at nearly 690 million tonnes per year. The cement sector is subject to India's first legally binding emission intensity targets under the Greenhouse Gases Emission Intensity Target Rules, 2025, which apply to 186 cement units (the largest number among four covered sectors) and require emission intensity reductions of approximately 3.4%. These regulatory requirements are expected to drive significant investment in FGD and emission-control technologies across the cement sector.
• India's FGD market is gradually transitioning from large-scale utility-driven installations toward retrofit projects, industrial diversification, and lifecycle services. While regulatory changes have reduced mandatory installations for many thermal power plants, demand continues to be supported by equipment modernization, replacement components, operation and maintenance services, and expanding industrial applications across steel, cement, refineries, and chemicals.

Market Outlook

• India's FGD market is entering a new phase following the July 2025 revision to SO₂ compliance requirements for thermal power plants. While the power sector remains the largest application, future demand is expected to shift from large-scale mandatory installations toward Category A compliance projects, industrial emission-control investments, equipment modernization, digital monitoring, and long-term operation and maintenance services. Growth opportunities are also expected to expand across steel, cement, refining, and other process industries.
• Power generation will remain the largest application for FGD systems despite the revised compliance framework introduced in 2025. Although only about 22.6 GW of coal-fired capacity had commissioned FGD systems by mid-2025, ongoing Category A compliance projects, retrofit contracts, and maintenance requirements continue to support procurement activity, while future installations will increasingly depend on plant location and regulatory assessment.
• India's cement industry represents a significant and growing end-use sector for FGD technologies. With production of 484 million tonnes in 2025 (up 9.9% year-on-year) and installed capacity nearing 690 million tonnes per year, the sector is subject to India's first legally binding emission intensity targets under the Greenhouse Gases Emission Intensity Target Rules, 2025. These rules apply to 186 cement units (the largest number among four covered sectors) and require emission intensity reductions of approximately 3.4%. The cement industry's environmental compliance requirements and modernization programs drive demand for flue gas cleaning equipment. Cement enterprises are increasingly investing in integrated desulfurization, denitrification, and dust removal systems to comply with environmental standards.
• As new utility-scale FGD installations moderate, procurement activity is increasingly focused on retrofit projects, lifecycle upgrades, and aftermarket services. Utilities and industrial operators are investing in equipment refurbishment, automation, process optimization, and predictive maintenance to improve operating efficiency while extending plant life.
• India's growing installed base of FGD systems is creating long-term demand for inspection, spare parts, consumables, performance audits, refurbishment, and annual maintenance contracts. Engineering companies are increasingly expanding lifecycle service offerings to improve system availability, regulatory compliance, and operating efficiency.

Policies & Regulatory Landscape

• The Ministry of Environment, Forest and Climate Change (MoEFCC) introduced emission standards for coal- and lignite-based thermal power plants in 2015 under the Environment (Protection) Act, mandating SO₂ control through FGD systems. In 2021, power plants were classified into Categories A, B, and C based on their proximity to densely populated and environmentally sensitive areas, enabling phased implementation of the regulations according to environmental risk.
• In July 2025, MoEFCC revised the FGD implementation roadmap based on studies by IIT Delhi, NIAS, and NEERI, which indicated that ambient SO₂ levels around many coal-fired plants remained within national standards. Under the revised framework, FGD installation remains mandatory for Category A plants by December 2027, Category B plants require installation only if directed by the Expert Appraisal Committee, while Category C plants are exempt from SO₂ norms subject to prescribed stack-height requirements.
• Launched in 2019, NCAP is India's flagship air quality programme aimed at reducing particulate pollution by up to 40% by FY2025–26 compared with the 2019–20 baseline. Covering 131 non-attainment and million-plus cities, the programme promotes cleaner industrial operations and indirectly supports investments in air pollution control technologies, including FGD systems in major industrial sectors.
• Notified in October 2025, these rules establish legally binding emission intensity reduction targets for 282 industrial units across the cement, aluminium, chlor-alkali, and pulp & paper sectors. Although primarily focused on greenhouse gas emissions, the regulations encourage adoption of cleaner production technologies and integrated emission-control systems, creating additional opportunities for advanced flue gas treatment solutions.

FGD Procurement & Industry Impact

• India's FGD procurement market is being reshaped by the revised SO₂ compliance framework introduced in July 2025. Procurement activity is increasingly concentrated on Category A thermal power projects, ongoing retrofit contracts, and industrial emission-control projects across steel, cement, refining, and chemical sectors, while aftermarket services continue to gain importance.
• Thermal power continues to account for the majority of FGD procurement in India. While mandatory installations have reduced following the 2025 policy revision, Category A projects, ongoing retrofit contracts, equipment replacement, and maintenance services continue to generate procurement opportunities.
• India's cement industry is emerging as an important growth area for FGD technologies as manufacturers invest in cleaner production processes and emission-control systems. Environmental compliance programs, plant modernization, and capacity expansion are expected to support demand for integrated flue gas treatment equipment over the coming years.
• India's steel industry continues to create procurement opportunities for emission-control technologies through capacity expansion, modernization of sinter plants, and stricter environmental compliance. Producers are investing in integrated gas-cleaning systems, dust collection, and flue gas treatment technologies to improve environmental performance while supporting future production growth.
• As the installed base of FGD systems expands, aftermarket services are becoming an increasingly important revenue stream for suppliers. Demand continues to grow for spare parts, consumables, inspections, refurbishment, digital monitoring, and long-term operation and maintenance contracts. Major suppliers including BHEL, Thermax, Larsen & Toubro (L&T), GE, and Shapoorji Pallonji continue strengthening lifecycle service capabilities to support both power and industrial customers.

Industry News

• October 2025: India notified the Greenhouse Gases Emission Intensity Target Rules, 2025, setting the country's first legally binding emission intensity reduction targets for carbon-heavy industries. The rules cover 282 industrial units across cement (186 units), aluminium (13 units), chlor-alkali (30 units), and pulp & paper (53 units) sectors, with reduction targets ranging from approximately 3.4% in the cement sector to 5.8% in aluminium.
• September 2025: FGD vendors including GE, Thermax, L&T, and Shapoorji Pallonji sought clarity from the government on ongoing projects following the July policy relaxation. The government was evaluating financial implications of completely shuttering ongoing FGD projects. Industry stakeholders urged the government to make the policy change prospective, allowing ongoing projects to continue as per existing contracts.
• August 2025: The Ministry of Power confirmed in a Parliamentary response that India's thermal power plants comprise 191 plants, 600 units, and 211,519.5 MW of capacity. Of these, 17 plants (66 units, 20,577 MW) fall under Category A, 25 plants (72 units, 24,057 MW) under Category B, and 149 plants (462 units, 166,885.5 MW) under Category C. FGD installation had been completed in 49 units (25,590 MW) by mid-2025.
• July 2025: MoEFCC issued notification G.S.R. 465(E) on July 11, 2025, introducing a revised framework for SO₂ emission compliance. Category A plants required to install FGDs by December 2027, Category B on case-to-case basis, and Category C exempted. NTPC halted FGD work at five plants following the exemption, impacting over 7 GW of capacity. The Indian government defended the revised framework, stating it was based on evidence, sectoral emission trends, and sustainability imperatives, noting there was "no notable difference" in ambient SO₂ concentrations between cities where plants had fitted FGD technology versus those that had not.
• 2025: India's cement production rose 9.9% year-on-year to 484 million tonnes, up from 441 million tonnes in 2024, according to the Ministry of Commerce and Industry. The country remains the world's second-largest cement producer. Total installed capacity is estimated at nearly 690 million tonnes per year.
• 2025: India's crude steel production reached 151.14 million tonnes in FY25, a 4.7% increase over 144.31 MT in FY24, with installed capacity reaching 200.33 MT. India stood as the world's second-largest crude steel producer. The steel ministry has sought $1.7 billion to help mills reduce emissions.
• 2025: BHEL secured an order worth approximately ₹11,800 crore from CSPGCL for the Korba West Supercritical Thermal Power Project, including FGD equipment supply, while Thermax continued executing industrial flue gas treatment projects across multiple sectors.

Segment Analysis

India Flue Gas Desulfurization Market By Technology
• Wet limestone-gypsum FGD remains the dominant technology across India's thermal power sector because it consistently delivers high sulfur dioxide removal efficiency and is well suited for large coal-fired generating units. The technology continues to be the preferred choice for utility-scale installations owing to its proven operational performance and regulatory acceptance.
• Semi-dry FGD systems are increasingly considered for medium-sized industrial facilities where lower water consumption, compact layouts, and lower capital costs are important. These systems are commonly evaluated for cement, metals, and other industrial applications where operating conditions differ from utility-scale coal-fired power plants.
• Dry FGD technologies continue to find applications across selected industrial sectors where water availability is limited and simpler operating systems are preferred. Their adoption remains more common in industrial facilities than in large utility power plants, complementing broader investments in air pollution control equipment.
India Flue Gas Desulfurization Market By End-use Industry
• Power generation remains the largest end-use industry for FGD systems in India because of the country's large coal-fired thermal fleet. While the revised 2025 compliance framework reduced mandatory installations for many generating units, Category A plants continue to drive procurement activity. Beyond new installations, demand is increasingly supported by upgrades, maintenance, spare parts, and long-term operation of commissioned systems.
• Cement manufacturing is becoming one of the fastest-growing industrial applications for FGD technologies in India. Capacity expansion, environmental regulations, and investments in cleaner production are encouraging cement producers to install integrated flue gas treatment systems during plant modernization projects.
• Steel production represents another important end-use industry for FGD technologies, particularly across sinter plants and other high-temperature combustion processes. Ongoing capacity expansion, modernization, and stricter environmental compliance are expected to sustain demand for integrated flue gas treatment systems across India's steel industry.
• Petroleum Refining and Chemical Processing continue to generate demand for emission-control technologies. India's refining capacity stands at 258.1 MMTPA (as of April 2025), on track to reach 310 MMTPA by 2030, with long-term plans to scale further to 400–450 MMTPA. This expansion will create additional demand for FGD and emission-control technologies across refineries. Refinery operators and petroleum coke processing facilities are increasingly investing in flue gas treatment systems to strengthen environmental compliance. The chemical and petrochemical industries continue to generate demand for FGD and flue gas cleaning technologies, particularly in processes involving combustion equipment and sulfur recovery units.
India Flue Gas Desulfurization Market By Installation Type
• Brownfield installations account for the majority of FGD activity in India because most projects involve retrofitting existing coal-fired power plants and industrial facilities. Investments are focused on absorber upgrades, pumps, piping, control systems, corrosion-resistant materials, and digital monitoring to improve operating efficiency and regulatory compliance. Although the revised 2025 policy has reduced mandatory installations for many plants, retrofit activity will continue at facilities that remain subject to FGD requirements.
• Greenfield installations represent a smaller share of the Indian FGD market and are primarily associated with new thermal power, cement, steel, and industrial projects. New industrial and thermal power projects continue to integrate flue gas treatment systems where environmental regulations require sulfur dioxide control.


Considered in this report
• Historic Year: 2020
• Base year: 2025
• Estimated year: 2026
• Forecast year: 2031



Aspects covered in this report
• Flue Gas Desulfurization Market with its value and forecast along with its segments
• Various drivers and challenges
• On-going trends and developments
• Top profiled companies
• Strategic recommendation

By Technology
• Wet FGD Systems
• Spray Dry FGD Systems
• Dry & Semi-Dry FGD Systems

By End-use Industry
• Power Generation
• Cement
• Iron & Steel
• Chemical & Petrochemical
• Metal Processing & Mining
• Oil & Gas Refineries
• Waste-to-Energy
• Others



By Installation
• Greenfield
• Brownfield (Retrofit)