There were 4 rounds for interview process

1. Aptitude
2. Passage writing
3. Technical interview
4. HR

Aptitude was quite easy. The test was on AMCAT. It was a 90min test with logical, quant, verbal and basic oop and coding questions.

In second round we were told to write a passage on any topic of our choice since there were few students for passage they selected everybody in that round

In technical interview, I was asked questions mostly about my resume and my Engineering project and few SDLC based questions.

Later in HR section i was again asked about the resume and usual HR questions. After HR they asked me when will i join the company and salary structure but later didn't offer me a job and kept me on hold

If you only know the starting and final position and there are multiple routes to reach the destination, then write all the possible steps to calculate the route which will require the least time.