** Shares of Deccan Cements DCNC.NS rise as much as 5.4% to 802.35 rupees
** Line-3 cement plant has been commissioned and commercial production has commenced from Dec 15
** Stock on track to gain for 4th straight day
** DCNC last up 1.8%, adding to YTD gains of 19.5%
(Reporting by Meenakshi Maidas in Bengaluru)
((meenakshi.maidas@thomsonreuters.com;))