New Delhi, 29 October (NNS): Black pepper prices are currently maintaining a firm trend. Recently, black pepper markara prices strengthened by Rs 5 to Rs 825/835 per kg. Daily arrivals have declined in major producing regions and markets, including Kochi and Karnataka. Farmers and large stockists are reluctant to sell their stocks at current price levels. With the arrival of festivals such as Diwali, both the consumption and demand in domestic markets and mandis are increasing rapidly. Global supplies are also tight due to adverse weather and fluctuations in production in major producing countries such as Vietnam and Brazil. Supply constraints are expected to continue in the near future, supporting prices.