New Delhi, 08 May (NNS): The sale of black pepper reported to be weak even after the sluggish prices. As a result, the prices of black pepper markara held firm at Rs 780 per kg. Recently, the prices have gone down by Rs 10 per kg. The arrivals and the prices held stable at the same level of the previous day in Kochi. The market sentiments may affect because of the constant selling. The spot black pepper prices may not show uptrend during the near future.