It was easy you can easily ace your interview if ur good at programming its not compulsoty that you have to be well versed atlest you should be good at basics you can choose any language and concentrate on the particular language at depper first round would be written test it conssist of three rounds including verbal ability logocak reasoning, quantitative apptitude you have take minimum cutofff for every section so that you can pass the test after lassing the test you can have only one round that is an technical come hr