Indian Railways is now operating an 'Oxygen Express' to aid the country in its fight against the second wave of Covid-19 infections. The 'Oxygen Express' left from the Rashtriya Ispat Nigam Ltd facility in Andhra Pradesh's Vishakhapatnam on April 22 and arrived at the Nagpur railway station in Maharashtra at 8.10 pm on Friday. A Roll on-Roll off (Ro-Ro) service, the 'Oxygen Express' was sliding with seven tankers carrying liquid medical oxygen (LMO).