well, BMS syllubus covers almost every part of mgmt dats 4m mrkting product / service, its financial aspects, logistic dat is basic transportation of ur product, hw to manage ur employess etc...so certainly after doing BMS u will certainly hav a upperhand than other with B.com degree...
wrt garment industry it hav its grwth potential n will surely need gud talents with gud organising skills which BMS gives. BMS will basicaly make u "Jack of all but master of none"