I don't know if SSR had actually confirmed anything about this anywhere. And frankly, while I know the story of Mahabharat, I don't remember specific moments to know if there was an exact replica of this scene...
But overall, I felt as if the war in BB2 wasn't too similar to the Mahabharat war. I could draw a similarity in BB1: the 'Thirisoola Viyugam' strategy in BB1 vs. 'Chakra Viyugam' strategy in Mahabharat that was used to draw Abhimanyu in. They are not the same, but it still designed to draw, trap the target(s) and defeat them. The war in BB2 was on a much more personal level. Bhalla vs. Mahendra on one side, Devasena doing the rounds around the temple on the other side, and both of these tracks clashing at one point (when Deva walks on Bhalla's head). So...for me, not much of MB inspiration that I could see in that particular scene, or even the final war...but I could be wrong.
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