Millions celebrate the annual festival of lights with fireworks in one of the world's most polluted capitals, worsening winter smog fuelled by vehicle emissions, farm fires and industry.
The Supreme Court this month allowed the limited use of so-called "green" firecrackers, designed to produce fewer emissions, during Diwali.
But restrictions are routinely flouted, with the city reverberating with explosions.
On early Monday morning, around eight…