<page_title> Kolkata Metro </page_title> <section_title> Network </section_title> <table> <cell> Line 1 <col_header> Line </col_header> </cell> <cell> 1,676 mm (5 ft 6 in) <col_header> Track gauge </col_header> </cell> </table>
Kolkata Metro Line 1, runs on 5 ft 6 in or 1,676 mm gauge.