The Youth Wing of the ruling CPN-UML, Youth Association Nepal (YAN), has started a nation-wide campaign against black marketeering and the rise in the price of daily commodities due to the Indian embargo. As a part of the campaign, YAN cadres organised a protest programme in front of Nepal Oil Corporation office in Babarmahal on Wednesday. The UML youth wing cadres chanted slogans demanding the state-owned oil monopoly to curb the ongoing black marketeering of petroleum products.