There are total 4 rounds in PRDXN. The 1st round is HR round which is very easy and anyone can clear it. The 2nd round is logical test in which programming questions were asked. You can write code in any language and you know what, my code was correct but still that man told me it was completely wrong! This company is worst! So the 3rd round is machine test in which you have to code an entire website in a day and the duration of this round is 6-7hr. And the last round is with the panel members