Cost Effective OOH Media in Mumbai Is railway media for you? Well, it is if your business concerns the thousands of rail travellers across India. India has the largest network of railways in the world. The Indian traveller trusts trains for long-distance travel as well as for intra-city transport in cities like Mumbai, which sees the most number of local train commuters in the country. Railway media that includes train posters, painting, and billboards and kiosks inside and outside railway stations have been a specialty of Global Advertisers for the last 18 years. We would love to share tips about what we have learned about railway media in these years and also how these ideas can work wonders for your business.