New Delhi, 07 November (NNS): The trading activities of black pepper reported to be sluggish on seeing the upcoming Diwali festival, due to this reason, here, its prices held stable at Rs 645 per kg. Recently, its prices eased by Rs 10 per kg. Apart from this, the arrivals and the prices remained stable at the same level of the previous day. The market sentiments may affect owing to the sluggish offtake. The spot black pepper prices likely to remain sluggish during the coming one or two days.