To quote from Sanctuary's post of this Ad..

This advertisement states that, "Cut something else for a Change" which means that instead of cutting a tree for the advertisement, it is better if we start cutting something else and save trees!

To quote from Sanctuary's post of this Ad..
"It's time that some of Mumbai's hoardings were hacked to make way for trees, not the other way around."

To repeat Peter Griffins reaction to this...

"I think that I shall never see
A billboard lovely as a tree
Indeed, unless the billboards fall
I'll never see a tree at all
~Ogden Nash"