India eases sulphur emission rules, exempting 79% of coal plants from installing costly flue-gas desulphurisation systems.

• Only 10% of plants near major cities must install FGD by Dec 2027; 11% assessed case-by-case.
• NTPC already spent $4 billion on FGD for 11% of units; over 50% had placed or begun installations.
• Govt cites CPCB findings on CO₂ rise from control tech; impact on cost recovery remains unclear.