1st (Technical) : First round took more than 1 hour. In this interviewer asked Basic Technical question related to c++. Mostly question are from constructor, virtual function, Pointers and Inheritance.
2nd (techinical) : Second round took hardly 15 minutes. In this round question related to debugging is asked.
3nd ( HR) : this round took 15 minutes. In this HR asked about salary and family background.