Neutrino Tech Systems interview question

Aptitude 10 questions on apti, 10 on sql or react , 10 on java or python. 2. Technical interview Multithreading , oops, collection in java, program of finding duplicate element in array and SQL queries. 3. Technical interview again DSA based questions, prime number code, diff between arraylist and linkedlist I have given 3 rounds. After my third round HR told me to leave. She said result will be declared on email. But I did not receive any. After some enquiry I got to know it was just a trap to hire referral candidate, fraud HR team. They just wasted my time