By default, the Idea 3G Aurus comes with dual GSM SIM configuration so you can use any other SIM module along with an Idea SIM. However, the company does not mention any specific features like dual-active or dual-standby for this model.
The Idea 3G Aurus brings specific optimizations in terms of software. It comes pre-loaded with Android 2.3.6 Gingerbread update with slight customizations to support dual-SIM. For instance, the lock screen shows the status of both the SIM cards and the dial gives single tap access for choosing the SIM module for making a simple call.