Comviva

so i have a question regarding a career decision so i am a recent graduate i have two offers one is from a mid size product based company (comviva )and one from service based (TCS) but the product based company has delayed my joining saying by few quarters and they will share me update regarding joining in October if everything goes fine they will release the joining dates , also i saw there recent quarter results and they were in loss so what should be my course of action here