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

Chinese personal computer maker Lenovo on Wednesday quashed market speculation it was interested in buying struggling Finnish cellphone maker Nokia.

"This must be a joke," Gianfranco Lanci, who runs