I went to CGC Chandigarh for the process in July 2018.
There were total 4 rounds.
1. Aptitude Test (Day 1)
2. Number Series Test (Day 1)
3. English Test (Day 1)
4. Face to Face Interview (Day 2)
1. Aptitude Test: Level was average (not hard but not easy as well). Most of the questions were based on work, time, average etc. Results are to be known just after the test. There will be a panel sitting. Just ask them about the result instantly (Quickest Response).
2. Number Series: Same old number series like 2,4,6,8,x . Find x.
3. English Test: Questions based on Grammar, Business Letter Writing, etc. If you cleared this round, you need to upload all your documents on their website to be prepared and bring soft copies of all your documents prior.
4. F2F : Questions based on your resume mostly and some personal questions. If you cleared this round, they check your original documents, So don't forget to bring them with you.
NOTE--- There are no proper GUI for the test. Only 1 question will popup at one time giving 2 minutes for each question. There is no question number, so you can't know how many questions you have attempted. You have to choose from one of the options as if you don't choose any option in given time 3 times, the test will be locked. There are online tests on TestBook.com and it is very helpful.
I have cleared all my rounds but its been 1.5 months and still I didn't got my call letter. Some of my friends got it but still not me.