IBM Associate Systems Engineer interview questions

1. aptitude 2.group discussion 3.techinical round 4. HR round

I was selected in a referral drive, the hiring process consisted of 4 rounds and it finished in 2 days. >The first round was a online aptitude test it consisted of 36questions & each question was to answered within 2min 30sec, there was no negative marking. >The second round was a English writing round in which we had to write a business email. >Third round was GD >The final round was a 2 on 1 personal interview in which technical & HR was taken together.