corrigendum - design development and maintenance for 3 years of integrated web dashboard based website with mobile app named seemystation for ministry of railways , development and support for mobile app , development cost , development of ver-1 , development of ver-2 remarks:- max 70% of ver-1 , application technical support cost , for 1st year , for 2nd year , for 3rd year , development and support of portal , development cost , development of ver-1 , development of ver-2remarks:- max 70% of ver-1 , application technical support cost , for 1st year , for 2nd year , for 3rd year , operations and maintenance cost for helpdesk for 500 concurrent users , for 1st year , for 2nd year , for 3rd year , operations and maintenance cost for helpdesk for incremental 250 concurrent users , for 1st year , for 2nd year , for 3rd year