Form 108, western region address

Where should a student from Gujarat (Western Region) should sent From-108 (Completion of Articleship),

1) WIRC, THE ICAI, ICAI Bhawan, 27 Cuffe Parade, Colaba, MUMBAI- 400 005.

OR

2) Western Regional Office, The ICAI, ICAI Tower, C-40, G BLOCK, OPP. MCA GROUND, BANDRA KURLA  COMPLEX, BANDRA EAST-400051.

Please help .... Thanking You In Advance.....