WATCH: First monsoon shower in parts of Kerala and south Tamil Nadu as citizens drench in beauty of rain

After the onset of the Southwest monsoon was delayed by a week, the India Meteorological Department (IMD) on Sunday said it has further advanced in the south Arabian Sea, most parts of Lakshadweep and some parts of Kerala and south Tamil Nadu among other regions.

"Monsoon has made an onset over Kerala today (June 8)," said India Meteorological Department's Director General-designate Mrutyunjay Mohapatra as monsoon marked the official commencement of the four-month rainfall season in the country.

Several parts of Kerala have started receiving a good amount of rainfall. Netizens took to social media to share videos of the first monsoon shower:

Read: Karnataka Awaits Imminent Monsoon Landfall, Thunderstorms And Gusty Winds Predicted: Week's Forecast Here

The news will augur well for the country as large parts have been witnessing agriculture distress and water levels in reservoirs in west and south India have dipped to low levels.

Most of rural India depends on the four-month monsoon season, which accounts for 75 per cent of the annual rainfall, due to a lack of adequate alternative source of irrigation. A good monsoon has a direct impact on the economy as agriculture remains the major contributor to India's GDP.

The north Indian plains, central India and parts of south India have been recording temperatures over 45 degrees Celsius. Mercury has soared to over 50 degrees in parts of Rajasthan.

On Thursday, IMD said the arrival of monsoon in Delhi is likely to be delayed by two-three days from its usual onset on June 29. However, Skymet said it may take at least a week longer.

The city is likely to receive normal monsoon. Northwest India too is likely to have normal monsoon.

The IMD declares onset of monsoon over Kerala if after May 10, sixty per cent of the available 14 stations  Minicoy, Amini, Thiruvananthapuram, Punalur, Kollam, Allapuzha, Kottayam, Kochi, Thrissur, Kozhikode, Thalassery, Kannur, Kudulu and Mangalore  report rainfall of 2.5 millimetres or more for two consecutive days.