Besides, adequate stocks position in the physical market on increased arrivals from Chandausi in Uttar Pradesh put pressure on mentha oil prices.
At the Multi Commodity Exchange, mentha oil for delivery in October moved down by Rs 6.40, or 0.94 per cent, to Rs 672.40 per kg in a business turnover of 123 lots.
On similar lines, the oil for delivery in September declined by Rs 6.20, or 0.93 per cent, to Rs 661.70 per kg in 413 lots.