The Stable update V13.0.4.0.SJUINXM has been officially released for POCO X3 Pro (codename is vayu). Before updating, please make sure you have downloaded the exact ROM matching your Xiaomi phone/tablet. In Fastboot mode, you can check model code by typing fastboot getvar product in cmd/shell.
The firmware files posted here are all official Xiaomi MIUI or HyperOS ROM, xiaomiROM.com do not own and never modified those firmwares，you will always download the file from Xiaomi server.
You may interest in those contents: POCO X3 Pro ROM Topics Xiaomi Devices Index
Download Poco x3 pro (vayu) India (IN) MIUI 13 V13.0.4.0.SJUINXM Recovery ROM with Android 12.0. Firmware size is 3.3 GB.