I went in a walkin interview 1st round was GD, It was for about 40 minuts for each group, topics were based on current affairs (eg P.K., Narender Modi, Democracy, LGBT etc), At the beginning of gd 2 mins were given to collect your data from internet, then all the group members were supposed to speak 1 by 1 for 2 minutes and give their own views on the topic(extempore). When every one was finished, then you have to discuss the topic in group (i.e interruption and argument was then allowed) for next 20 mins. 2nd round was Technical Interview , general ques were asked from resume, c, ds, os, web tech. you are supposed to write simple program codes on the language you mentioned in your resume 3rd round was programming round , here they will ask you that whether you know python or not, if not they will teach you basic syntax of python and give you a simple program to check that you can easily learn it or not.