noida the countdown to the fall of the supertech twin towers – which will be india’s tallest buildings to be demolished – will begin on saturday as the first batch of explosives are brought into the compound in sector 93aedifice engineering and its technical partner south african company jet demolition will oversee the arrival of 250kg of explosives that will be packed into the columns of apex the taller of the two towersfrom here on officials said on friday the first batch.