India, Oct. 24 -- When travelling on the Aqua Line, Mumbai's newest metro corridor, forget about scrolling to while away the time. If you need to use your cell phone for something more pressing, be warned - there's still no service.

Internet connectivity on Mumbai's only underground metro line, whose final leg between Worli and Cuffe Parade was inaugurated two weeks ago, has been held up due to a squabble between the Mumbai Metro Rail Corporation Limited (MMRCL) and the internet provider contracted to provide the service.

The delay has sparked criticism, seen as a glaring oversight amid all the hype surrounding the metro corridor. Although the internet is available in the concourse area at all 27 metro stations on the Aqua Line, it blin...