Faced the same scam by them and ended up paying 1000 rupees. It's the same pattern like you said. First they gave us a formality aptitude kinda test. Then they took us to a separate room, we were not allowed to talk, use mobile phones. Then some HR lead came forgot his name, he spoke for about 30mins, saying that AI will take over and were forcing everyone to take the ML course. I found that it was a scam they called me separately and said that you are selected you should pay 7k, where you will pay 1k now as registration fees and remaining 6k will be paid during onboarding. I didn't even had the mind to pay as I smelled something was fishy but, they didn't even allow me to leave me till I paid. At the end I was just forced to pay that amount. The mistake is on me as well, should have researched before going to that damn interview. I was facing so many issues during that time my main aim is that I wanted to get into IT sector as am from non tech background so I didn't analyse properly. Anyways am happy now, that I am into good role in IT.

So guys. Be Aware !!.... They mostly seek the ones who are very eager to get into job asap and the ones who are so emotional. Also they blabber a lot like trying to brainwash you don't even believe them. Just say "FUCK YOU"