Tell me more about your previous experience? Did you work as data scientist? How many years of work experience you have ? About masters degree? where are you graduating from? do you need H1B in future

First round was a resume and technical discussion. The response came after a week. Second round was an assignment to be done based on data analysis. After the submission, they responded they will get it reviewed and come back with a feedback. Followed up a week later, again got a reply to wait. This repeated after 2 weeks. But they never gave a required reply.