MUMBAI( REUTERS)-Heavy rains brought by Cyclone Gulab damaged India's summer-sown crops such as soya beans, cotton, pulses and vegetables just before harvesting in key growing regions, which could reduce production and lift prices, industry officials said. Lower production could force India, the world's biggest importer of edible oils and pulses, to increase overseas purchases of these commodities, and it couldreduce cotton exports from the world's top producer. Cyclone Gulab, which originated i