After CV shortlisting, they send an invitation email for an onsite written test. The test includes 15-20 MCQs and 3-4 questions to assess your problem-solving ability. The test is taken from following the domains: 1. Data Structures (C++) 2. Basic Algorithm 3. Object Oriented Programming (C++) 4. Basic IQ level 5. Database queries The second round is similar to the first round. They give you a few questions to solve using python. Also, ask for some basic-level database queries. The third and final technical round is a little bit tough. They again assess your problem-solving skills and also ask questions about the Operating system core, like threading, processes, memory management, etc.