Samsung India has started rolling out Android 4.3 update in the country earlier today. The update is now available via Kies app on PC or Mac and as over-the-air download. As the software updates are released in batches, not everyone will get the update right-away.
Galaxy S4 owners can manually check for the OTA update by going to Settings > More > About Device > Software update > Update. If you don’t see the update or are getting ‘limit exceeded’ message, don’t worry and check for the update after some time or try downloading it using Kies application.
The OTA update is 658MB in size, so it is better to download it using a decent Wi-Fi connection or 3G if you don’t have data FUP restrictions.
India is the second country after Russia to get the Android 4.3 for I9500 Exynos version. There is no official change-log available (Updated with official change-log).