Bhagavad-Gita: Chapter 2, Verse 48

Rudra Vaisnava Sampradaya:

Visnuswami

Sridhara Swami's Commentary

The fundamental question which might be raised is what then is factually to be done? This is now being answered in this verse. Established in the science of yoga perform all activities. Yoga is the science of the individual consciousness attaining communion with the Ultimate Consciousness. Being established by this yoga perform actions relinquishing attachment, motivation for rewards and depend solely upon the mercy of the Supreme Lord in all one's activities. Totally unconcerned about success or failure, attainment or non-attainment resultant surrender in righteousness all actions as an offering unto the Supreme Lord. This is the eternal path called yoga by the wise as it consists of fixed concentration of the mind.

Brahma Vaisnava Sampradaya:

Madhvacarya

Madhvacarya's Commentary

The previous verse 47 is further clarified here. Yoga, equanimity is the methodology encouraged. Relinquishing desire and attachment to the rewards of actions while steadfastly remaining equipoised in either success or failure. This verily is what is meant by equanimity.

Now begins the summation.

The meaning of the word sangam is attachment. Attachment to what? The rewards of one's fruitive actions.

Sri Vaisnava Sampradaya:

Ramanuja

Ramanuja's Commentary

Established in yoga and renouncing attachment to all accompanying results one should engage in actions as a matter of duty to the best of one's ability completely unconcerned with success and failure. This equipoised condition of the mind keeps it peaceful and steady in the face of all adversity and balanced and calm in the fulfilment of any actions.

Kumara Vaisnava Sampradaya:

Nimbaditya

Kesava Kasmiri's Commentary

What should one do? Lord Krishna states here to remain balanced and equipoised. Discard the mentality of being attached. Be balanced in either victory or defeat and perform your duties. Karmani refers to duties the plural usage of duties indicates various obligatory and occasional duties; but the optional duty is not to be included among these as they are not required. Otherwise there would be contradiction between the former and the latter statements. Yoga is explained by Lord Krishna Himself as being in the state of equanimity.