** Shares of HEG Ltd rise as much as 6% to 2,361.95 rupees
** Graphite electrodes maker has invested 2.49 bln rupees ($29.7 mln) in graphite products maker GrafTech International
for an 8.23% stake
** Stock on track to snap four days of losses
** More than 345,000 shares traded as of 11:02 a.m. IST, vs their 30-day moving avg of 493,313 shares
** HEGL last up 4.9%, adding to YTD gains of 22.4% so far
($1 = 83.9500 Indian rupees)
(Reporting by Meenakshi Maidas in Bengaluru)
((meenakshi.maidas@thomsonreuters.com;))