The 125 kms long section between Sitarampur and Shaktigarh (in West Bengal) has quadruple railway tracks (i.e. four parallel tracks). I want to know which other sections in Indian Railways (at least 50 kms stretch) also have quadruple tracks and what is their MPS? Pl. count the number of parallel lines for MAIL/EXPRESS TRAINS ONLY- exclude those tracks which are reserved only for suburban/MEMU trains. I searched a lot but couldn't find this information anywhere.