Central Bureau of Investigation to grill Rhea Chakraborty for the 4th consecutive day in Bollywood actor Sushant Singh Rajput death case. She was grilled for 9 hours on Sunday as the agency repeated questions in a bid to spot contradiction. Apart from Rhea, her brother Showik, and several associates of Sushant were also grilled by the CBI on Sunday. Watch the Nonstop know more.