Section 4(2)(c) in The National Capital Territory of Delhi Real Estate (Regulation and Development) (General) Rules, 2016
(c)status of the project (extent of development carried out till date and the extent of development pending) including the original time period disclosed to the allottee for completion of the project at the time of sale including the delay and the time period within which he undertakes to complete the pending project, which shall be commensurate with the the extent of development already completed, and this information shall be certified by an engineer, an architect and a chartered accountant in practice.