I have attended on campus recruitment of Caritor in my college
(Jaya Engg College). It was held for 2 days. There are totally four rounds.

1.Aptitude Test (one English essay mandatory)
2.Group Discussion.
3.Technical interview.

In Aptitude there are questions from logical, mathematical and English. Totally 35 questions for 1 hour.

15 from mathematical.
10 from English
10 from logical reasoning
Totally 360 attended aptitude out of which 138 were selected for next round.

GD is easy. 111 were selected from 138. There is more elimination in Technical round. out of those who cleared gd 51 cleared Technical round. All got cleared HR interview those who cleared Technical round. At last 51 were given offer letters.

All the best.
John Abraham