Narcotics Control Bureau (NCB) grilled actress Rhea Chakraborty on Sunday in connection with the probe into the drugs angle clouding the death of actor Sushant Singh Rajput. The actress has been summoned again for Monday after a six-hour-long session. The development came after NCB arrested Rhea’s brother Shwoik Chakraborty and Sushant’s house manager Samuel Miranda in the case. The Esplanade Court sent the duo in NCB custody for 4 days till September 9. Also, NCB arrested the late actor’s personal staff Dipesh Sawant.