Monsoon rains reached India's southern coast of Kerala a few days later than usual on Friday, offering relief to farmers eagerly waiting for the start of the wet season that is crucial for their summer crops.br br But the slight delay in the monsoon's onset is unlikely to have a major impact on sowing of rice, pulses and cotton that has started in many growing areas of northwest and southern India, taking advantage of pre-monsoon showers.br br The formation of a possible El Nino weather phenomenon, which can cause drought in South Asia, is only expected to have an impact later in the four-month rainy season.