DFS sources said the medical tests were a prelude to the narco-analysis or "truth serum" tests on the accused and it was during the test that it was revealed that Surendra was diabetic.
Delhi Police has handed over the laptop and mobile phones of Congress MP Shashi Tharoor's deceased wife Sunanda Pushkar to Gandhinagar-based Directorate of Forensic Science, to retrieve crucial data, which could help the ongoing probe into her death.
The DFS will now analyse the data and prepare its final report.