Round one technical pyspark,python,sql three coding and architexture round two scenario based questions and one code lead and lag based sql code moreover the process went smooth and th interview was not that much tough

It was very cumbersome, Technical round was done and I was asked to wait for Salary discussion but the HR didn't come back. After almost a month's time the HR again scheduled time with the manager and again there was no communication after the meet. After 3 weeks time they rolled the offer.