case study, hr round , technical round , process takes minimum 1 month, in technical round questions on case study are asked, interview is for 1 hr. there is one psychometric test also, compensation is good

I applied online and recruiter contacted me almost a month after online application. After sharing latest CV, the hiring manger contacted me with a written assignment and case study. It took 2 weeks for the manager to assess my submission and I was called for face-to-face interview. Overall questions were easy and based on the assignment. On same day they asked me about salary expectations and td me that they would get back in 2 weeks. They informed me of the decision after 3weeks. There was a HR round for salary discussion before final offer was made.