I went three days in BT first for online test then 1st technical then 2nd technical, my second technical went awesome, they asked easy question only and I answered all the question correctly, but they rejected don't know why. They are just passing the time any day you go there, you will find 50 of people came for interview and 100 for online test even on saturday also. They are doing this for company advertisement. if you have more time to waste then go. I went three days but never saw any one who cleared all the round. I think they are selecting 1 after taking 1000 interview. One more thing, when I was going out from that company I found my interviewer at ground floor then he also saw me and then he hide himself beside some people, what a junk guy he is.