New Delhi, 04 July (NNS): Here, the prices of black pepper markara remained stable at Rs 535 per kg due to the sluggish sale. Recently, the prices have gone up by Rs 10/15 per kg. The arrivals reported to be negligible because of the heavy rainfall in Kochi and the prices held stable at the level of the previous day. The spot black pepper prices likely to remain sluggish during the coming one or two days.