New Delhi, 08 February (NNS): The prices of black pepper held firm at Rs 635 per kg owing to the sluggish sale even after the sluggish prices. Recently, the prices have gone down by Rs 10 per kg. The arrivals reported to be negligible and the prices remained stable at the same level in Kochi. The market sentiments may affect owing to the new crop. In this situation, the prices may not show more uptrend in the spot black pepper prices during the coming days.