After 1 week got mail about Technical Round HR told me in this hiring we have 2 round of Technical Round. In Technical Interview: Formal Introduction About Internship (In my case) Tech stack used (in Project/Internship) React js (front end): Properties, props, Hooks, types of hooks) Object oriented programming: Inheritance, Polymorphism, encapsulation, Data abstraction: detail of Encapsulation, Polymorphism (types of polymorphism) with examples Objects, class with examples Database: definition, types of data base, Relational database, non relational database, SQL query, Joins in sql types of join (open online editor show how they work) Data Structures: Stack (Example), QUEUE, hashmap, hashtable with example.