Shree Bhagavad-Gita is available in different prints or Versions (according to different authors) in the market. Which one is most authentic one , according with meaning and how one should select the right print for oneself?
Currently we have number of commentaries on Bhagavad-Geeta available. Some of them even written by atheists may be. We might then wonder which commentary to read; as it may not be possible for everyone of us to understand the sublime message directly without commentary.
In Geeta this question is addressed by Krishna. krishna in 4th chapter says:
This supreme science was thus received through the chain of disciplic succession, and the saintly kings understood it in that way. But in course of time the succession was broken, and therefore the science as it is appears to be lost.
"Disciplic Succession" is a very important word here. The Acharya(Spiritual master) passes down the message of God without unnecessarily incorporating his own whims. So if we can trace the disciplic succession of the commentator back to Krishna then the commentary may be taken as authentic.
Basically different Acharyas have written commentary from the viewpoint of their philosophy. Ex Adi Shankara's Commentary explains the message of Godhead from standpoint of Advaita(Non-duality)
Similarly(Following are Vaishnava philosophies):
ISKCON Commentary by Srila Prabhupada : Achintya-Beda-abheda(Inconcievable simultaneous oneness and duality).
Above mentioned are the commentaries by Acharyas that are connected to Krishna through disciplic succession.
More about Vaishnava Sampradaya(disciplic successions) here.