Delhi, UP, Rajasthan, Punjab & more states sizzle in heatwave: What's fuelling temperature spike

India is grappling with an intense heatwave as temperatures soar, with the IMD issuing orange and red alerts for several northern and central regions. Delhi is experiencing highs of 44-45°C, while Uttar Pradesh's Banda district has recorded over 48°C. The extreme heat is also impacting tourism and is linked to global climate factors like potential El Niño conditions.