Participants locked in gains amid a weak trend overseas
Reduction in rig counts, hopes of better oil demand have helped Brent rise 15% so far this month from January's close of $52.99
Speculators trimmed positions amid a weak trend in base metals overseas and subdued demand at domestic markets
Surveillance systems on high alert on fears of manipulation; huge market turnover likely, including by foreign entities
Unitech, HCC, Jaiprakash Associates, Oberoi Realty, HDIL, IVRCL and GMR Infra were up over 5% each on NSE.