When we neglect the price tag, Yamaha R3 becomes the better option with its 41.4 BHP power output and a 29.6 NM torque engine. The R3 delivers more performance and would be a more loved machine as it just has 3 more kgs than the R25 and the performance increase is really significant. The only thing which confuses the battle is the difference of INR 75,000 between the expected prices of the bikes.

Yamaha YZF-R3 - Lightweight Supersport for Everyday Use