Lower production could force the world's biggest edible oil importer to raise overseas buying of palm oil, sunflower oil and soy oil in the 2019/20 marketing year starting from Nov. 1.
The crop was badly affected in low-lying areas of Madhya Pradesh, Maharashtra and Rajasthan due to water-logging, the Soybean Processors Association of India said in a statement.
The central state of Madhya Pradesh, the biggest producer of soybeans in the country, received 44pc above-average rainfall in 2019.
The western states of Maharashtra and Rajasthan are India's second- and third-biggest producers.