For the technical interview, Infosys expects you to have a stronghold in the following topics. If you prepare on these aspects with the best of your EFFORTS, then surely you can crack the interview easily.

• The majority of the questions will be asked on programming languages like C, C++, or Java. Here the questions can be asked directly from SYNTAX, so you need to be sure that you are CHOOSING the correct programming language. The questions can be asked from computer fundamentals like OOPs, Operating SYSTEMS, etc. You will also be given to write a program, wherein mainly your syntax and the logic that has been used will be checked.
• One more aspect is Data Structure and Algorithms, in which you need to have a basic understanding of Data Structure concepts like a stack, LINKED list, queue, etc. Here only basic concepts will be asked, so need not worry about some high-end aspects like Trees, Graphs, etc.
• It is expected that you need to have good command over the concepts on database concepts like SQL, MongoDB, etc. Here the questions can be asked from basic relational database concepts as well from SQL syntax.