| Office: | Department of Mathematics, Room No. 106-A Indian Institute of Technology Bombay, Powai Mumbai - 400076 |
| Hostel: | Hostel No.1 (Queen of the Campus), Room No. 135 Indian Institute of Technology Bombay, Powai Mumbai - 400076 |
| Home: | Mohalla Baruzai Ist, Near the mosque of Deputy Janab Rafi Ullah Khan Sahib, -242001, Uttar Pradesh (India) Phone No: 05842-226702 |
| Send E-mail: | sartaj [at] math.iitb.ac.in |
| Phone Number: | 022-25764455 (RS Lab.) |