** Shares of Shriram Pistons and Rings SHIE.NS jump 5.5% to 2,994.40 rupees
** Auto parts maker looks set for third-straight session of gains following deal for Grupo Antolin's Indian units
** SHIE up ~15% over three sessions
** Emkay Global ("buy") raises stock's PT to 4,650 rupees from 3,400 rupees; lifts FY27, FY28 revenue estimates by 30%
** Brokerage likes SHIE's diversification into automobile interiors and away from core powertrain components
** Stock up ~36.5% so far this year, outperforming top auto stocks' .NIFTYAUTO ~21% YTD gain
(Reporting by Nandan Mandayam in Bengaluru)
((Nandan.Mandayam@thomsonreuters.com; Mobile: +91 9591011727;))