After spending more than 25 years in reaching out to consumers with mobiles Sunil Bharti Mittal is finally ready to write a new story with US giant Wal-Mart.The stores to be ready by the middle of 2008 and if the supply chain efficiencies play out Wal-Mart would aim to cut prices of agricultural products by 10-15 per cent and of textiles by 10-15 per cent.