Tata Technologies stock rose 180 per cent to hit a high of Rs 1,500 over its issue price of Rs 500. At 10.08 am, the Tata firm was commanding a m-cap of Rs 55,329.13 crore. At least nine other Tata group companies including Tata Consultancy Services Ltd, Titan Company Ltd, Tata Motors Ltd, Tata Steel Ltd, Trent Ltd and Tata Power Company Ltd command m-caps in excess of Rs 50,000 crore.