I have been interviewed in JIO and Interview went fine but after two days i got an rejection email from HR. They need to improve the recruitment process over all.
I applied through college or university. The process took 1 day. I interviewed at Jio (Vellore) in Jan 2017
Interview
First round was a pen paper technical question MCQ types from java and C++. You could any one of the field. shortlisted were followed by technical interview and finally HR.