Approved Master Plans
Revenue Master Plan — new chandigarh 2008 2031
This is a document published by GMADA. This portal links to it for reference and does not host, mirror, or modify the file — it's served directly from gmada.gov.in.
About this document
GMADA's own site labels this the "Revenue Master Plan" for New Chandigarh (published 16 May 2017) -- a proposed land use plan drawing for the Local Planning Area, showing residential, industrial, institutional, and open-space zoning alongside the road network.
Revenue Master Plan

Rendered directly from GMADA's own PDF at the link below.
A note on this document
GMADA's site lists this separately from the "Zonal Plan" document below, but as of this check both links serve what appears to be the same (or a near-duplicate) Proposed Zonal Land Use Plan drawing for New Chandigarh, dated December 2015 -- not two visibly different documents, despite the different names.
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For the full picture of New Chandigarh's master plan -- demographics, land use breakdown, and more -- see the master plan overview page.