The development came after Deepika and Karishma were questioned on Saturday, and Rakul and Khambatta on Friday for several hours.
The NCB interrogated Deepika for more than five hours on Saturday and Rakul for more than four hours on Friday. Karishma was interrogated for two consecutive days Friday and Saturday while Khambatta was grilled on Friday.
The agency recovered their phones as the alleged “drug” talks were conducted on the same phones, the source said.
The source also said that BCN recovered the phone from Sushant’s former talent manager Jaya Saha.
Along with Deepika, Rakul, Khambatta and Karishma, the NCB also interviewed Bollywood actors Shraddha Kapoor and Sara Ali Khan for several hours on Saturday.
The BCN registered a case at the request of the Directorate of Law Enforcement (DE) after finding alleged discussions of Deepika with its former director in 2017 over drugs.
Rakul and Khambatta’s phones were seized as they are both close friends of Sushant’s girlfriend Rhea Chakraborty, who was arrested earlier this month after three days of questioning.
Besides Rhea, the NCB also arrested her brother Showik and 17 others in connection with the case.
