Interview process was good and took 3 weeks to rollout offer, 3 rounds. You will get results of each round in 2 working days.
1st technical - Technical aspects of your past work experience and would be better if you have worked on Voice platform in past.
2nd managerial - Your past projects discussion, mainly focus on relating your experience to thier needs.
3rd hr - salary discussion and policy explanations
Overall good interview experience.