I have attended the walkin on sep 2017,in bangalore. There where 3 rounds 1.Apti (Technical part carries more weightage then quant).Here they asked programs(Patterns) and also on html 2.GD, dont argue in gd 3.F2F,based on your resume they will check your technical knowlegde. here they ask you to write a program and trace it. I was out in FInal round, as they asked me question on HTML.