Does GAS Authority of India Limited have its office in Mumbai? If yes then please give me the contact information of the office?

GAIL (India) Limited is the largest state-owned natural gas processing and distribution company set up by the Government of India in August 1984 to create gas sector infrastructure.
It was previously known as Gas Authority of India Ltd. It is having its zonal office in Mumbai.

The contact details are given below:
Zonal Office:
GAIL (India) Limited
7th Floor, B-Wing
Priyadarshni Building
Eastern Express Highway
Sion (east), Mumbai – 400022

Ph: 022- 24045453, 56, 57. 24045000
kamaltandon@gail.co.in