Real Time Data Services Software Engineer interview questions

It was an on-campus oppurtunity and there was one aptitude round following with and English round and i cleared both of them later i recived a mail that i have an google meet techincal round. The interview started with a firm hello and then started with os and oops concept we talked about my project and later that evening i recived a mail that i have been selected for further process. However after that i have been ghosted and never got the link for the next interview

inter view is based on development and data structure and algorithm,they also ask about your project and many other of youe experiences....there is hr round also and manegerial round also in the comoany interview