I applied through college or university. The process took 1 day. I interviewed at NTT DATA (Hyderabad) in Sep 2017
Interview
first round was an test which is held for 1 hour and it is a online one..... one who is good at aptitude can easily pass this test. second round was group discussion. it is very easy the topics were related to real life scenario.. third round was technical and fourth round is HR
Applied through Amcat, Off campus interview. There were 6 rounds. Group Discussion, 3 technical, 2 managerial rounds. Few may have only one HR round. They ask technical questions in the HR round as well. If you are not from CS, be prepared with your course basics. Every round they eliminate half the candidates. They give offer letter on the same day and give joining within 1-2 months of your interview.
I applied through college or university. The process took 2 days. I interviewed at NTT DATA (Bengaluru) in Oct 2014
Interview
1. Aptitude test
2. Groud discussion and the topic was based on education and its importance for success
2. Technical interview which included coding in 3 languages.
I was asked c++, MP and HTML.
These programs were basic and the logic behind it was more the point of focus
3. HR - pretty basic questions like why do you want to join this company and as such