New Delhi, 19 August (NNS): Here, the prices of black pepper markara improved by Rs 10 to Rs 740 per kg owing to the strong sale even after the higher prices. Recently, the prices have gone up in the same ratio. Both the arrivals and the prices held stable at the same level of the previous day in Kochi. The market sentiments may affect because the stock of Shri Lanka will likely to arrive after some time. The spot black pepper prices will likely to remain strong during the near future.