I applied through a recruiter. I interviewed at Cognizant (Hyderābād) in Apr 2018
Interview
I was asked few basic java questions. Interviewer showed less interest basically it's a long day and after waiting for hours I got chance for interview.
It's rather better to conduct scheduled interview
I applied through other source. I interviewed at Cognizant (Gurgaon, Haryana) in Aug 2021
Interview
First online test on the technology for which you have applied followed by technical interview through video conferencing, interview was not tough if you will be selected then HR will call you