** Shares of electric bus maker Olectra Greentech OLEC.NS
rise as much as 6.7% to 1,276.65 rupees, highest since Sept. 18
** Stock sees busiest trading volumes since mid-Sept
** Stock also marks sharpest intraday pct rise since Oct. 27
** OLEC up 156% so far this year, propelled by several EV
bus orders including a $1.2 bln contract in July; Nifty Auto
index .NIFTYAUTO up 33% in comparison
** Reason for stock move on Monday was not immediately clear
(Reporting by Chris Thomas in Bengaluru)
((chris.thomas@thomsonreuters.com; +91-80-6749-8695; Reuters
Messaging: chris.thomas.thomsonreuters.com@reuters.net))