Several states in India have announced measures to curb pollution during Diwali.Gurugram, Haryana, Punjab, and Kerala have specified a two-hour window (8 pm to 10 pm) for bursting crackers during Diwali night.Delhi has reinforced a complete ban on the sale of all types of firecrackers until January 1, 2025.Tamil Nadu, Karnataka, Maharashtra, and West Bengal have limited the sale and use of crackers in accordance with environmental guidelines.