Its an On Campus Opportunity.
First of all they conduct an Offline Exam which having MCQs which covers all area like DBMS , OOPs , Programming Ques, Python , Java Script ... Everything is basic only.
Then 1 Tech + 1 (Tech + HR ) Round.
First Technical interview (Which was my 1st Interview) -

1. She asked about Development , What is REST API etc
2. Then DBMS
3. OS , Mutlithreading is asked deeply
4. Then she asked Linear vs Non Linear DS & moved towards Graph & Trees
5. She asked Tree travalsal then graph traversal difference between them deeply & implementation also.
6. Dijkstra's Algorithm which i explained nicely.
7. After that Stack & Queue.
8. Then 2 Sum question after that 3 Sum que.
9. End i got shortlisted for 2nd round.

2nd Round Technical + HR :-

1. Race Condition vs Deadlock vs Starvation.
2. Aging
3. Error vs Exception deeply discussion
4. Semaphore & Told me to write code of Multithreading which i did'nt studied at that time.
5. End i did'nt get Shortlisted.

This was my first interview i did'nt get offer but i learned a lot of things which i cover & crack my next two interviews.
So don't afraid from the rejections rather write down the waek points work on them & make yourself better.