1. Hr round , will receive call from hr and she will let you know about the company and timings etc and fix the date for F2F interview.
2. 2nd round if of technical round, in which one senior person will ask for technical questions, and will discuss about the project needs.
3. 3rd round will be of Pratical round in which they will ask mostly for performing web api call, send or receive data from api call by http web request.
4. if you can pass that then will be held discussion about salary and other things.