Q$\mathrm{.}4$ Please refer to the case: "Project Ashray: Planning a Time$-$Constrained Project#: ISB$316-$PDF$-$ENG" and answer the following questions.$(35$Marks$)$

a$)$ On the basis of the initial draft project estimates developed by Niranjan Raj, construct a project network diagram using the activity$-$on$-$node representation. What is the estimated completion time of the project as per initial draft estimates? Determine the project activities that must start and finish on the initial time estimates to ensure that the project ends on schedule

b$.$ What is the estimated completion time of the project as per revised draft estimates? Determine the project activities that must start and finish on the revised time estimates to ensure that the project ends on schedule. What is the minimum expected time in which Project Ashray can be completed on the basis of the project crash data provided, with an objective to minimize the cost? What is the additional cost incurred by crashing the project?

c$.$ Discuss if and when Agile is suitable for project delivery efforts in infrastructure projects such as Project Ashray. What are the learnings from the implementation of Project Ashray? What nuances in Project Ashray are different from typical project management implementation besides the urgency of time given the pandemic?