18.47 One's proper Dharma is that which is suitable for performance by oneself, in the form of worshipping Myself, relinishing agency etc., as has been taught. For, Karma Yoga, consisting in the activities of sense organs, is easy to perform by one in association with Prakrti. Thus, Karma Yoga, even if it is defective in some respects, is better than the Dharma of another, i.e., than Jnana-yoga, even for a person capable of controlling his senses, which is an attainment liable to negligence, because it consists of control over all sense-organs; for, though this may be well performed occasionaly, one is always liable to deflection from it.

He explains the same:

As Karma consists of the activities of the sense-organs, it is ordained by Nature for one who is conjoined with Prakrti, i.e., the body. So by performing Karma Yoga one does not incur any stain. But Jnana Yoga is liable to negligence, because it reires the control of the senses from the very beginning for its performance. One intent on it is likely to incur stain from negligence. [Thus we are reminded about what was mentioned in the third chapter - that Karma Yoga alone is greater.]