Aluminium prices on Monday fell Re 0.25 to Rs 207.35 per kg in the futures market as participants trimmed their positions amid a weak trend in the spot market. On the Multi Commodity Exchange, aluminium for delivery in June declined Re 0.25 or 0.12 per cent to Rs 207.35 per kg Analysts said cutting down of positions by participants on easing demand from consuming industries mainly kept aluminium prices lower.