I applied through university. The process took 2 days. I interviewed at ZS Associates in Sep 2014
Interview
Great pre-placement talk..it was very detailed and clear.
This was followed by online test(Min criteria was 70% agg. till 6 sems).
I cleared this test and I was selected for interviews next day.
It had two rounds:
-Case Interview
-Behavioral+tech. Interview
Overall interview experience was great!