=> The first round is about yourself ,they will ask you about education, qualifications , interests, technologies you work on etc.
=> The second round will be an Assignment which will be given by them to you which will be according to the job profile you have applied for and you have to complete it and submit it in a given amount of time.
=> The third round will be a technical round in which they will ask you about some programming questions / technical questions on the technologies you work on as well as the assignment they have given to you that how you made what are the things you have used etc.