Actress Rhea Chakraborty's father reached the DRDO guest house here on Thursday for questioning by the CBI for the third consecutive day in the case of death of her boyfriend and film star Sushant Singh Rajput, a police official said. Rhea Chakraborty and her family members are accused of abetting the suicide of Rajput (34), who was found hanging in his flat in Mumbai's Bandra area on June 14.