I have applied through their carrer site directly. 1.Resume Shortlisting 2.Technical Round 3.Hr Round. In the technical round they asked about Javascript concepts like closure, lexical scope, promise and async/await. and some logical question to code.

aptitude test, interview with puzzles, coding and cfd. Question based on mostly simple puzzles, ant revolving around triangle, probability of collision..., check the point lies within the triangle, square, pentagone, ...circle. Question on computational fluid dynamics(if you have knowledge, but not compulsory)