HARMAN Developer interview questions

bellow are steps for interview process. 1. written test for two hour for both subjective and objective questions. 2. technical 2 rounds , one hour for each round. 3. project account head , again some technical and managerial round 4. 3-4 rounds of Hr rounds. still not received offer letter... they was saying client approval and senior approval is required even if they suggested offer amount.

1 round was easy . Question was based on aptitude ,C , C++ , datastructure , os , dcn....2 round was group discussion and the topic was diversity n inclusion