Amendment to Outline Design Specifications of Phase-IV (July 2019) List of Empanelled Makes for Major Electrical Items March 2021 Conditions of Contract on Safety & Health and Environment (November 2020) Phase-IV Approved Corridors Project Update an Janakpuri West – R. K Ashram Marg corridor Outline Construction Specifications for Civil Works (Revision-1) (July 2019) (29.07.2019) Outline Design Specifications for Phase-IV (Revision-1) (July 2019) (29.07.2019) Empanelled Manufacturer/Supplier's List vendor empanelment format 2020 updated time extension