A 38-year-old Indian-origin man, hailing from Kerala, was stabbed to death in South London, just three days after shocking incidents of knife attacks in the UK, which saw the deaths of a British Indian teen and a student from Hyderabad.Aravind Sasikumar died after being found with stab injuries on chest outside a residential property in Southampton Way on Friday, the Metropolitan Police said.Detectives investigating Sasikumar's fatal stabbing have charged his roomate Salman Salim with murder.According to media reports, Salim (25) stabbed Sasikumar to death following a quarrel.