Tracking a firming trend in precious metals overseas, silver futures prices today rose 0.20 per cent to Rs 41,380 per kg as speculators built up fresh positions amid covering-up of short positions. At the Multi Commodity Exchange, silver for delivery in December traded higher by Rs 83, or 0.20 per cent, to Rs 41,380 per kg in business turnover of 15 lots. On the similar lines, the white metal for delivery in September traded Rs 65, or 0.16 per cent, higher at Rs 40,538 per kg in a turnover of 886 lots.