** Shares of Goa Carbon GOAC.NS fall as much as 2.7% to 430.10 rupees
** Calcined petroleum coke maker reports a Q4 net loss after tax of 65.4 mln rupees ($768,606.99) vs profit of 93.6 mln rupees a year ago
** Rev falls ~26% y/y to 1.32 bln rupees
** Stock on track to fall for third week; it has fallen 3.2% so far this week
** More than 47,000 shares traded as of 1:47 p.m. IST, busiest day yet since April 7
** GOAC last down 1.3%, adding to YTD losses of 35.7%
($1 = 85.0890 Indian rupees)
(Reporting by Meenakshi Maidas in Bengaluru)
((meenakshi.maidas@thomsonreuters.com;))