Difference between Vetting and Concurrence
Vetting: refers to conforming of a factual correctness of figure or statement of figures.
Examples: Vetting of Briefing Note, Estimates, Purchase Order etc.
Concurrence: refers to agreeing a proposal in its entirety including the figures given under proposal.
Examples: Concurrence for construction of new bridges, replacement of machinery, etc.
Note: Extract from the comments given by F(X)/Dte in reply to information sought under RTI Act, 2005.
http://rti.railnet.gov.in/rtidata/Scanned/n4192.pdf
http://rti.railnet.gov.in/rtidata/Scanned/n4192.pdf