I applied through college or university. I interviewed at Barclays (Mumbai) in Aug 2018
Interview
there was aptitude test with verbal skills with two relatively easy coding questions(in my case both of them were based on array) after qualifying in that there were personal interviews.
I applied online. The process took 2 weeks. I interviewed at Barclays (London, England) in Sep 2018
Interview
It was a video interview, with various data analysis, competency questions, presentation of your analysis for about 5 minutes and answering to emails. There was not much time to answer everything and could not see half the data
I applied online. The process took 2 months. I interviewed at Barclays (New York, NY) in Sep 2017
Interview
Applied through website, took math test and then online interview and then I was brought in for two more interviews in person. It was very conversational and it was not as aggressive as other IBs that I have interviewed in.