Larsen & Toubro interview questions

It was an online interview. There was a Lady HR, and 2 Technical members in the panel. They asked me to introduce myself. Then they asked what are the subjects you have studied during your engineering. Then the technical questions started to come in. They asked me about I.C. engines, scavenging, refrigeration cycle. Then they asked what subjects have you prepared which would be useful at L&T. I said Material science and Manufacturing. Then they asked some questions from Iro. Carbon diagram, some about composition and properties of steels and cast iron. Then some more small technical questions. After that the HR took over and gave me a topic and asked me to prepare a small speech on it right there. I fumbled initially but then she corrected me and completed it. I would say the interview went well, they also seem impressed with me. I was confident from the start so they also became chill with me and we had a good convo overall.

Application and selection, Telephonic Hr round, 1st technical round , 2nd round, final HR round ( I'm reporting only about the 1st HR round ) Here as that's what I've gone through until now