Tracking firming global market and pick up in domestic demand,lead prices edged up slightly Rs 0.20 or 0.20 per cent to Rs 100.35 per kg in futures trade today. At the Multi Commodity Exchange,lead for delivery in April gained Rs 0.20 or 0.20 per cent to Rs 100.35 per kg,with a turnover of 722 lots. The metal for delivery in May contract also moved up by similar margin to trade at Rs 101.60 per kg in a turnover of 318 lots. Analysts attributed the rise in lead prices at futures market to pick up in demand from consuming industries,particularly battery makers. Besides,covering-up of short positions in view of monthly expiry also supported the lead prices,they said.