IMD has issued heat wave alert for Odisha during April 20-21, Jharkhand, Gangetic West Bengal and Bihar during 20-23. Severe heat wave conditions are likely in pockets of Odisha on April 20 and Gangetic West Bengal during 20-22. Telangana, coastal Andhra Pradesh, Yanam, Rayalaseema, Kerala, Mahe, Sub-Himalayan West Bengal, Sikkim may witness hot and humid weather between April 20-23.