Guar complex futures witnessed a sharp 5 per cent gain last week on the back of speculative buying and better export outlook for guar gum. Delayed sowing amid crop damage concerns in some parts of western Rajasthan also helped the prices. Most active guar seed contract traded on the NCDEX moved up by 5 per cent to close the week at ₹3,739 per quintal. Similarly, the NCDEX guar gum futures for Oc...