How helpful would an online MBA degree be from NMIMS, Mumbai?

The new ruling or the new update is that the online program of NMIMS has been stopped by the UGC. But even if it was in place, I would have suggested you in a negative. Go for full-time programs always and if possible do it from some premier B-school. In fact, do not go for an online MBA in India, until and unless you have some dependencies or constraints. Instead, go for some other short-term courses which are industry oriented or in other words, in-demand courses that align with your career goals and interests. Some examples from my side - get yourself PMP certified, do some digital marketing courses, big data and analytics for any industry, supply chain management, and many more.