I applied online. I interviewed at Cognizant in Apr 2014
Interview
Initially Aptitude test was conducted comprising of basic questions from R.S.Agarwal.This was followed by technical round and finally HR round,Technical round comprises of few basic questions from your engineering syllabus in the technology you specify in your resume.For eg in c they ask sme pattern display questions like pascal triangle.Some questions from sql.DDL,DML,DCL commands.Your project related stuff.HR questions you about yourself,future plans,current issues going on in the country to check your outlook.Some documents are checked.
Introduction
Basic of Oops and Programming
2 Coding Questions
Reverse String and Number
Question on Java and SQL Spring Boot and Other programing related questions like hashing map vs hash table why they are used
It was three round interview with written test and 2 easy interviews. One technical and one with HR for compensation discussion. All were conducted on the same day. In order to get selected need to stand out and answer uniquely.