Former business manager of late actor Sushant Singh Rajput, Shruti Modi, arrived at the Narcotics Control Bureau (NCB) SIT office in Mumbai on Sep 16.
She was summoned by drugs probe agency on Sep 15.
The NCB has so far arrested 18 people in connection with the death of Sushant.
Rhea Chakraborty, her brother Showik and Sushant's house manager Samuel Miranda are under judicial custody.
