I applied through college or university. The process took 2 days. I interviewed at ZS Associates (South Twenty Four Parganas) in Sep 2018
Interview
The first round is an online assessment , pretty much following the AMCAT pattern but a bit heavy on DI based questions. This was followed by a video assessment. The shortlists from our college attended the pool campusing. There the first round was a case study round. The ones that made it past the case interview then had to go through a fit interview. The ones who got through that then had the HR/ Principal interview which was also the last round. Out of an initial pool of 600-700 3 people finally got the offer.
Interview questions [1]
Question 1
Why ZS? What will you do if you know you are going to miss a deadline?
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