Betsol Senior Java Developer interview questions

Please Don't even give interview. Worst company !! Cheap employee and HR mentality and very bad office infrastructure(looks even worse that 3rd grade cyber cafe). Total 6 rounds were taken. 1st was online test, followed by 2 technical telephonic rounds. After clearing those, i was called to their office to give face to face interview. They gave me a test to create custom stringbuilder methods i.e, append()and toString() (very easy). After that Two technical interviews were taken. Both were of 1 hr each. After that, they were not able to reject me, as i was sure of my interview. Then after that, they made some lame excuse of the written test being evaluated by someone else. So they told me to hold for some time. One week later, they told me that i was not selected based on the test feedback. I said "What!!" , Such a lame answer.