First was the Technical interview round. In this past I was drilled for detailed knowledge of C and computer science concepts. Problem solving skills were also checked.
After that there was HR round.
I applied through an employee referral. The process took 2 weeks. I interviewed at Adtel Software (Noida) in Nov 2019
Interview
Written coding test based on algorithms and data structure followed by 3 Technical interviews and one manager round. After shortlisting of cv they called me for an interview. The interviewer was very polite and friendly too.
Interview questions [1]
Question 1
Basic and advanced level of question of algorithms and data structures. If you are good with these you can easily crack.