Mumbai: The Bombay High Court on Wednesday sought to know from Indian Railways why sale of only one brand of mineral water is permitted at railway stations where different brands and varieties of food are available.

A division bench headed by Justice N H Patil was hearing a public interest litigation by commuter Lopesh Vora challenging a circular issued by railway authorities last year directing contractors and caterers having stalls on platforms and railway stations to stock and sell only 'Rail Neer' - packaged drinking water supplied by the Indian Railway Catering and Tourism Corporation (IRCTC).