I applied through university. The process took 1 day. I interviewed at ZS Associates (New Delhi) in Aug 2020
Interview
There were three rounds, including :
1) Problem-solving skills in which maths, reasoning, verbal, data-based MCQs were asked
2) Case study round.
3) Estimation question round - there will be basic estimation questions like how many flights are currently being operated in India.
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