The Secretariat manages day-to-day activities and support functions of TSDSI. Secretariat or the office of the Director General also acts as an interface between Governing Council and the Study Groups.
| Name: | Designation | |
| Ms. Pamela Kumar | dg[at]tsdsi[dot]org | Director General |
| Mr. B. S. Chauhan | bschauhan[at]tsdsi[dot]org | Executive Director, Operations |
| Ms. Bindoo Srivastava | bindoo[at]tsdsi[dot]org | General Manager, Programs and Operations |
| Ms. Jayeeta Saha | jayeeta[at]tsdsi[dot]org | Manager, Standards |
| Mr. Harsh Kumar | harsh[at]tsdsi[dot]org | Asst. Manager, Administration and Finance |
| Ms. Ayushi Sharma | ayushi[at]tsdsi[dot]org | IT Engineer |
| Mr. A.K Mittal | akmittal[at]tsdsi[dot]org | Advisor – Networks,Systems and Technologies |
| Mr. Vijay Madan | vijay.madan[at]tsdsi[dot]org | Advisor and Mentor-Services and Solutions |
| Mr. Udayan Banerjee | udayan[at]tsdsi[dot]org | Consultant- IT |
| Mr. Rohit Rawat | rohit[at]tsdsi[dot]org | Intern – Services and Solutions |