The NCP chief also termed Parth, son of his nephew and Deputy Chief Minister Ajit Pawar,as "immature", setting off speculation about a rift in the family.
The Maharashtra government, of which NCP is a part, has maintained that Mumbai Police are capable of probing the actor's death.
"Parth Pawar issue is a family matter of the Pawars. We don't want to get into that issue. We are not even remotely associated with it," Fadnavis told reporters here.
"It is a matter within their family, and they should try to resolve it within the family," he added.
The BJP leader pointed out that Maharashtra has reported the highest number of coronavirus cases in the country and accounts for 40-41 per cent of the total deaths.
"Unfortunately, Maharashtra has become a Covid-19 capital....The Covid-19 situation in Maharashtra is grim," he said.