No diesel locomotives will be allowed in the Delhi area after March 2019 said Railway Minister Piyush Goyal. He said national transporter was on track to completely phase out such locomotives by 2022.Speaking at the Institute of Railway Electrical Engineers, Goyal emphasised the need for transformation and change in the work culture of the Railways.Union minister l also said that as of January 31, 2018, 279 electric locomotives have been built.