In brief, HR process is worst worst.
It took 2.5 months for the whole process, in which they had scheduled 4 technical rounds (1 Skype, one telephonic and 2 face to face) and one HR round , after sharing all the documents to HR ( Sumathi C) , they are not at all responding over email or phone, I had chased so much asking about my offer but no response at all.
Suggestion to HR: at least give a value to employee when you had scheduled interviews , give a response whether it is a positive or negative. In my case I don’t think so it is negative as you took all my documents for offer, please don’t kill anyone’s time and their hopes.