Hard and solid, you will have to be prepared for the process. I would recommend solving leetcode. And you can focus on medium to difficult questions. You can also look at questions from a coding book. That might help you as well.,
I applied online. I interviewed at Inspire Infotech (Surat City) in Oct 2018
Interview
First round was HR round, they screen the overall candidature. Then scheduled my second round on the same day with the owner. And final interview was scheduled few days after it.
