LEADS Corporation ASP.NET Developer Intern interview questions

After few days of submitting CV, I sat down for a scheduled technical interview which was the first stage of 3 stage interview. I told about myself and expressed my interest to be a backend developer. Interviewers picked up from there and asked a series of questions regarding security, encryption, payment gateway etc. What kind of projects have I completed and with what technologies? 1/2 questions about OOP, MVC, Entity framework, LINQ. 2nd stage was HR Interview which was just getting to know you. Last stage was solely with the MD of LeadSoft where he just validated for final confirmation.