Police keeps saying there were 3 glasses of beer / whisky in hemraj's room. Why the hell would Rajesh Talwar have daru with his servant ? Also the murders seem to be the work of an iliterate because so much blood was spilled. A professional killer or a doctor would not kill and leave such a large trail of blood.
To me the killer seems to be hemraj's friends who killed Arushi and then had to kill him to cover up.
