Infosys Senior System Engineer interview questions

I was taken 1 technical and then 1 HR round where salary discussion was done. technical round was good enough. I was asked for explanation about the projects worked on.. Explain servlets and JSP life cycles.. Explain Java polymorphism with example. Process was quite quick

1-technical round around 30 mins mostely regarding technical,details about current project. 2-technical round arund 30 mins mostley checking logical skills like asking to write a programm to check weather the given string is parlidrome or not, 3-HR round - 10 mins