I applied through other source. The process took 1 day. I interviewed at Restolabs (New Delhi) in Jan 2020
Interview
I applied through Elitmus.First there was 2 hour written paper in which 5 questons were there.Out of 5, 4 was based on coding and 1 on sql.2 of the coding questions were easier based on arrays.
Interview questions [1]
Question 1
They also asked about Javascript/Php(It's a big advantage here).