I appeared in walkin interviews for enterprise integration engineer , best thing it was on saturday. Process took 4-5 Hours, there was an apptitude round followed by technical round and in-person interview with one of their technical lead. in first round i.e. apptitude and logical reasoning ,it was not that difficult. In second round they asked me whether i am ok with WCF(.net framework) or SQL, I said SQL, they handed over me a paper of MCQ of SQL which includes basic and advance level SQL questions. to pass this round one should have hands on experience and practice with SQL. after submission ,they told me to wait and after some time i was called in a cabin for face to face round with a technical person. First he asked me general questions like how's the day? Where do u stay ? then asked questions on my current job profile , SQL , application troubleshooting etc. after this round the person told me to wait outside ,after a person came to me and asked me to leave because i was not selected in that.