The stage is set for the safe demolition of Supertech's twin towers here this afternoon in what is expected to be a breathtaking spectacle of engineering to raze to the ground the nearly 100-metre-tall structures borne out of corruption. The towers -- both taller than Delhi's iconic Qutub Minar -- will be brought down in less than 15 seconds by waterfall implosion technique. the They will be the tallest structures yet in India to be demolished, officials said.