Accio Robotics Robotics Software Engineer Intern interview questions

I applied online. Initially there will be task assessment after that since many students shortlisted from task assessment 1 another task was given both with a deadline of 3 days each. Next there is a technical interview in which they mainly asked questions focusing on the solutions for the task assessments . They said next there will be a HR interview if i got shortlisted but after 4 days I got a rejection mail.