MUMBAI (REUTERS) - India’s annual monsoon rains have covered two-thirds of the country, nearly a fortnight ahead of the normal schedule, a weather department official said on Monday (June 14), adding that conditions are favourable for further advancement into the north-western parts this week.

The early arrival of monsoon rains in central and northern India will help farmers accelerate sowing of summer-sown crops such as paddy rice, cotton, soya bean and pulses, and may boost crop yields too.

“Monsoon has already covered some parts of Punjab. Usually, it enters Punjab in the last week of June,” said an official at the India Meteorological Department (IMD) who declined to be named. Monsoon arrived in the southern state of Kerala on June 3 against the usual June 1, but has advanced quickly since.

Since the start of the season, the monsoon has delivered 25 per cent more-than-normal rainfall, boosted by higher rainfall in the central India region, data compiled by IMD showed.

Monsoon is crucial for India's US$2.7 trillion (S$3.6 trillion) economy, as it delivers nearly 70 per cent of the rain needed by farms, besides replenishing reservoirs and aquifers.

Sowing of summer-sown crops such as cotton, rice, soya bean, corn and pulses has already started in southern and western states, and could start in central and northern India this week, said a Mumbai-based dealer with a global trading firm.

"Farmers are interested in rice and oilseeds due to higher prices. We might see higher area under soya bean and paddy," the dealer said.

India is the world's biggest exporter of rice and top importer of edible oils such as palm oil, soya oil and sunflower oil.

Nearly half of India's farmland gets no irrigation and is dependent on the annual rains from June to September. Farming accounts for nearly 15 per cent of the economy but sustains more than half of a population of 1.3 billion.