Aruna Chaddha, who is co-accused with Kanda in the abetment to Geetika Sharma's suicide, was with the police team during the searches, said a police official.
Investigators, led by Bharat Nagar police station chief Inspector R.P. Yadav, raided Kanda's MDLR office in the old judicial complex here and searched it for more than three hours.
Besides that, Chaddha, who is under police remand, was also taken to some other undisclosed places in Gurgaon.
"Some files and floppies were taken into custody," said a police officer.
Kanda, who owned the MDLR Airlines where the 23-year-old Geetika Sharma was earlier employed, was booked for abetment to her suicide and criminal intimidation.
Kanda, former minister of state for home in Haryana, is untraceable and on the run, police say.
Geetika hanged herself to death in her north Delhi's Ashok Vihar house and in her suicide note blamed Kanda for her extreme step. Her autopsy report Friday confirmed there was no foul play and she died due to hanging.
Kanda, who began his career as a petty shopkeeper and later became a multi-millionaire property dealer, floated the MDLR Airline in 2007. He was elected as an independent legislator from Sirsa constituency to the Haryana assembly in the October 2009 polls and joined the Congress-led government headed by Chief Minister Bhupinder Singh Hooda.