railway+distance(finding sitelinks)

site for finding trains between stations:
http://indiarailinfo.com/search
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site for finding distance between 2 stations:http://www.blogger.com/img/blank.gif
http://www.distancesbetween.com

4findng-stncodes-by-givng-station name:
http://www.indianrail.gov.in/stn_code.html