Gemini Solutions Software Engineer Java Developer interview questions

Rounds :- 1st Technical : Question related to OOPS ,data structures ,databases - (joins,indexing),threading, complexity,a puzzle too. 2nd Technical : little bit advanced topics related to datastructrues , collections, programming questions (1-2), complexity. 3rd Technical : questions related to datastructrues and resume based questions from projects and programming questions on linkedlist and Arraylist Managerial Round : Questions about you and your contribution and projects and a puzzle HR Round : questions related to you and package details. Wasn't offered a job , and the reason from HR was really absurd that your feedback in technical rounds was not that good.If that's the case dont waste people time by taking managerial and HR round. Wasted more than 30 days of my life. 1 round every week. One Suggestion, Plz provide a satisfactory answer and reject them if you are not sure in technical round so they can try somewhere else.