a) Formalization of design brief;
b) Site survey and soil investigation;
c) Hazard risk vulnerability analysis;
d) Alternative concept designs with costing and finalization;
e) Preliminary designs and drawings;
f) Development of design of each discipline and their integration;
g) Obtaining statutory approvals;
h) Decision on construction methodology;
j) Preliminary cost estimates;
k) Detailed design of each discipline;
m) Construction working drawings and related specifications with integration of engineering inputs of all concerned disciplines;
n) Detailed cost estimate;
p) Detailed specifications and billof quantities; and
q) Tender documents.
Peer review/proof checking of the drawings/designs/estimates shall be done in case of important projects, depending upon their complexity and sensitivity. Environment impact analysis and social impact analysis shall be done in applicable cases.