Shares of HCL Infosystems surged over 15 per cent after a local newspaper reported Lenovo Group(0992.HK) is in talks to buy a 50.1 per cent controlling stake in the Indian company for around 5 billion

Lenovo Group Ltd is on track to overtake Hewlett-Packard Co as the world's biggest PC maker by sales as soon as this year, making it the first Chinese company to grab the top spot globally in a techno