Tech Mahindra Software Developer interview questions

first online test was conducted in which there were questions from mainly aptitude and logical reasoning after this technical interview it was very simple. at last there was HR round and thts it

The process was very methodical. I didn't have to wait for long and the interview finished within 2 hours. The questions were on basics of collections in Core Java nothing more. I was asked to draw the tree structure of all the collections available in Java. I could draw it quickly as i had learnt it quite recently.