they check only the communication skills and confidence. Few may ask some technical questions,but it depends on the interviewer. Mine lasted for 10 minutes, for few it was 2 minutes,5 minutes,just the introduction and they were selected. they can take anyone,its like a lottery system.You will find many idiots here,as if they purchased a huge stock of idiots from a fish market. This you will realize when you go for the training in Mysore and ya you are one of them too. Most of the people here are from non Cs/It background as they find difficulty in finding jobs in their core sector. I would recommend for a Cs/IT guy to write Amcat/Elitmus and get into some good company for the career growth. Its your decision,make it count. I am a Mechanical Engineer.