New Delhi, 29 May (NNS): The monsoon has reached in kerela. The trading activities of black pepper get affected because of the heavy rainfall in Kochi. As a result, here, the prices of black pepper markara improved by Rs 10 to Rs 740 per kg owing to the limited buying even after the feeble prices. Recently, the prices have gone down by Rs 10/15 per kg. There is no possibility of long downfall in the prices during the near future.