Is Underworld Don Dawood Ibrahim connected to Sushant Case?

Rhea Chakraborty's underworld connection has been revealed. Now the question is whether this case has relation with underworld Dawood Ibrahim? In the drugs case, the person Rhea was chatting with on WhatsApp has a direct relationship with the underworld. The name of this person is Gaurav Arya. 

Gaurav Arya is associated with a person named Abu Ismail Azmi. The Narcotics Control Bureau is also investigating the Sushant Singh Rajput death case.