Bhagavad Gita says:
Bg 12.9 — My dear Arjuna, O winner of wealth, if you cannot ﬁx your mind upon Me without deviation, then follow the regulative principles of bhakti-yoga. In this way develop a desire to attain Me.
Bg 12.10 — If you cannot practice the regulations of bhakti-yoga, then just try to work for Me, because by working for Me you will come to the perfect stage.
Bg 12.11 — If, however, you are unable to work in this consciousness of Me, then try to act giving up all results of your work and try to be self-situated.
Bg 12.12 — If you cannot take to this practice, then engage yourself in the cultivation of knowledge. Better than knowledge, however, is meditation, and better than meditation is renunciation of the fruits of action, for by such renunciation one can attain peace of mind.
My question is: Out of Bhakti marga, Karma Marga, Jnana Marga do we need to strictly follow one particular marg to achieve the ultimate goal or can it be combination of them? Are they mutually exclusive?