Bits mailing address
You're looking for the mailing address of BITS Pilani!
Here it is:
Birla Institute of Technology and Science (BITS Pilani) Pilani, Rajasthan 333031 India
Phone: +91-01596-242181-85 Fax: +91-01596-242186
You can also reach out to them through their website: www.bits-pilani.ac.in
Please note that this is the mailing address for the Pilani campus. If you're looking for the mailing address of one of their other campuses (Hyderabad, Goa, or Dubai), please let me know and I'll be happy to help!