There are 2 level interviews.
L1 is pretty basic knowledge test based on your yrs of experience
L2 is client round. The difficulty level of this round depends on the client. For me the client is a bank. Hence it was medium level difficulty.
If you are a new Java programmer, go over fundamental Java concepts, data structure, algorithms and API. Experienced programmers may benefit from reviewing core Java concepts like concurrency, OOPs, exception handling, string handling, synchronisation, collection framework and multi-threading. You can also study advanced Java topics like JDBC, JSP and Servlet, and popular frameworks like JSF, Hibernate ORM framework, Spring with Core, MVC, AOP, JDBC and ORM, Struts and SOAP & REST web services.
Interview questions [1]
Question 1
They Asked about Project Related Things which we have developed in our Application
2 technical and one HR, Then they will call you if got selected in L2 round and will discuss for salary expectation and market standard based on that they will release offer.