Sir: The anti PML-N political parties are ridiculing the camp office Mian Shahbaz Sharif has put up at the Minar-e-Pakistan, Lahore. They term it as show-shaw. Whatever it may be called, the fact of the matter is that it has paid so far. Load shedding has reduced by many hours and now the government is in full mood to harness this menace. Now Mian Shahbaz Sharif must criticise the exorbitant increase of electricity, gas, CNG and petrol tariff and he must expose CNG fraud for plundering billions and replacing it now with LPG. Z JEHAN Karachi