“Due to climate change, many states are witnessing heavy rain for the past two weeks, of which Karnataka and Andhra Pradesh are supplying maximum vegetables, now due to rain, the crops have been damaged, which leads to a shortage of supply in the market. So the prices have increased by 20 to 30 per cent, also this situation might extend till next month,” said S Balaji, member, Koyambedu Wholesale Merchants’ Association.