** Shares of Cartrade Tech CART.NS rise as much as 4.2% to 2,490 rupees, last up 1%
** Co said traffic at its platforms, CarWale and BikeWale, rose 74% to their highest ever single-day traffic on Monday
** CART says spike in traffic highlights combined impact of festive season demand and tax rate cut, which enhanced affordability and lifted consumer sentiment across automobile sector
** India's Nifty auto index .NIFTYAUTO rises to record high
** CART up ~62% YTD
(Reporting by Vijay Malkar)
((VijayDattaram.Malkar@thomsonreuters.com;))