I applied through college or university. The process took 1 day. I interviewed at ZS Associates (New Delhi) in May 2018
Interview
1st round-Aptitude Round by HirePro
2nd round-Telephonic Interview
In this round they asked to introduce and then they asked simple guess estimates and puzzles.
3rd round- Case Study
A case scenario of 8 pages were given of 6 questions which included 4 DI questions and 2 qualitative questions.Time allowed was 40 minutes.
And then a case interview of 30 minutes was held.
4th round-Guess Estimates and Puzzles
Final HR round-Basic HR questions like why consulting,why ZS etc.
Asked about introduction of my self.
Guestimates and some puzzles. It was very interactive conversation between myself and inteviewer. I explained about the projects I have done and he asked questions about projects
4 rounds
Online Assessment
Communication Round
Case Study Round
Interview Round
Total 4 rounds each round is an elimination round and the first two rounds were same for BTSA role
Asked about puzzles, resume based questions like projects I have done, objective of the project, what are the implementations of the project that I have done and Situational or Behavioural questions