Heat Wave Warning: Hot Conditions To Prevail In Delhi, NCR; Check IMD’s Alert For States by NDTV Profits | April 21, 2026 10:15 pm | Latest Posts, Market, Trending News The weather department said a fresh spell of heat wave began on April 18 over Haryana and has since expanded to Delhi, Uttar Pradesh, Uttarakhand and parts of Madhya Pradesh.