New Delhi: The Railways on Wednesday said it is contemplating to widen the scope of medical treatment of its 13 lakh employees by providing them a health insurance scheme.In a statement, the national transporter said it was already providing medical health facilities to its employees and their dependent family members through 'Railway Employees Liberalized Health Scheme' and 'Central Government Health Services'."Indian Railways is now proposing to widen the scope of medical treatment of railway employees," it said.Accordingly, a committee has been constituted to examine all aspects relating to a 'Comprehensive Health Insurance Scheme' for railway staff with a view to provide an insurance cover against financial risks during medical,.