Goa, June 28 -- Mumbai witnessed yet another knife attack just days after a fatal stabbing inside a local train, raising fresh concerns over public safety in the city. A 35-year-old office worker was allegedly attacked near Mahim railway station after accidentally bumping into a stranger while returning home from work.The victim, identified as Naveen Prasanna, works as an office boy at a private company in Lower Parel. According to police, the incident occurred around 10 pm on June 25 after he got off a slow local train at Mahim station. While walking through the station premises, Prasanna accidentally collided with an unidentified man, causing the latter's mobile phone to fall.Despite immediately apologising and explaining that the colli...