Heavy rainfall lashed many parts of the national capital  today. An orange alert has been issued as the monsoon rainfall in Delhi breached the 1,000 mm mark , the highest rainfall in 46 years. <br />''<br />''The India Meteorological Department has forecast that thunderstorm with moderate to heavy intensity rain will occur over most places of Delhi along with Gurugram, Noida, Faridabad, Karnal and Manesar.<br />''<br />''<span style="color: #222222;">There was waterlogging in several parts of the city including at Indira Gandhi International Airport Terminal 3  after rain. Many flights were also delayed due to water logging.</span>