Here is the list of few B.A. (Hons.) Economics Colleges located in Mumbai which you are looking for .

Kishinchand Chellaram College of Arts, Commerce and Science
#124, Dinshaw Wachha Road, Churchgate,
Mumbai, Maharashtra
(022) 22855726, 66981000
(022) 22029092

Shreemati Nathibai Damodar Thackersey Women University (Churchgate)
Nathibai Thavkersey Road, New Marine Lines
Mumbai, Maharashtra
(022) 22031879, 22032159, 22032025, 22032328
(022) 26604759

Sophia College for Women
Bhulabhai Desai Road,
Mumbai, Maharashtra
(022) 23512642, 23523304
(022) 23513183

Few other Economics Colleges located in Mumbai is given below :
Asmita College of Arts Commerce and Science for Women
Kannamwar Nagar 2, Vikhroli- (East)
Mumbai, Maharashtra
(022) 25782466, 25771525
9321196013
(022) 25782466

B.L. Amlani College of Commerce and Economics
N-S Road No. 6, (Next to Jamnabai Narsee School, Gate No. 4), J. V. P. D. Scheme, Vile Parle (West)
Mumbai, Maharashtra
(022) 26147104

Bhavan's College
Munshi Nagar, Andheri (West),
Mumbai, Maharashtra
022) 26256451, 26256452
(022) 26256453

Guru Nanak College of Arts, Science and Commerce
Guru Tegh Bahadur Nagar, Sion Koliwada, Antop Hill, (Near Antop Hill Church)
Mumbai, Maharashtra
(022) 24071098
(022) 24071098

Guru Nanak Khalsa College of Arts, Science and Commerce
Nathalal Parekh Marge, Matunga East
Mumbai, Maharashtra
022) 24096234
022) 2406815