Over n out!!

A battery of $10V$ and neglegible internal resistance is connected across the diagonally opposite corners of a cubical network consisting of $12$ resistors each of $1 \Omega$ . The current $I$ flows through the circuit.

Find $I$ .

$\rightarrow I$ should be in $ampere$ .

$\rightarrow$ All resistances in the image above are of $1 \Omega$ and battery is of $10V$ .

$\rightarrow$ It's a question from $KVPY$ .

Image credit: $Akshat$ $Sharda$ $\ddot \smile$