Download MIUI 12 for Redmi K20/Mi 9T

All given links are official

Redmi K20 India:

Recovery ROM

MIUI 12.0.1.0

https://bigota.d.miui.com/V12.0.1.0.QFJINXM/miui_DAVINCIININGlobal_V12.0.1.0.QFJINXM_b305175c05_10.0.zip

MIUI 12.0.2.0 : https://hugeota.d.miui.com/V12.0.2.0.QFJINXM/miui_DAVINCIININGlobal_V12.0.2.0.QFJINXM_160038cad3_10.0.zip

Fastboot ROMs

MIUI 12.0.3.0

https://bigota.d.miui.com/V12.0.3.0.QFJINXM/davinciin_in_global_images_V12.0.3.0.QFJINXM_20200722.0000.00_10.0_in_ddd4cfcd6b.tgz

MI 9T Global:

Recovery ROM

MIUI 12.0.1.0

https://bigota.d.miui.com/V12.0.1.0.QFJMIXM/miui_DAVINCIGlobal_V12.0.1.0.QFJMIXM_f09a4569f4_10.0.zip

MIUI 12.0.2.0 : 

http://bigota.d.miui.com/V12.0.2.0.QFJMIXM/miui_DAVINCIGlobal_V12.0.2.0.QFJMIXM_eca715bb58_10.0.zip

MIUI 12.0.3.0

https://bigota.d.miui.com/V12.0.3.0.QFJMIXM/miui_DAVINCIGlobal_V12.0.3.0.QFJMIXM_ed720ed0a6_10.0.zip

Fastboot ROMs

MIUI 12.0.2.0: 

https://bigota.d.miui.com/V12.0.2.0.QFJMIXM/davinci_global_images_V12.0.2.0.QFJMIXM_20200712.0000.00_10.0_global_b1b1a79316.tgz

MI 9T EEA(Europe):

Recovery ROM

MIUI 12.0.2.0 : 

http://bigota.d.miui.com/V12.0.2.0.QFJEUXM/miui_DAVINCIEEAGlobal_V12.0.2.0.QFJEUXM_0bb88ea943_10.0.zip

Fastboot ROMs

MIUI 12.0.2.0: 

https://bigota.d.miui.com/V12.0.2.0.QFJEUXM/davinci_eea_global_images_V12.0.2.0.QFJEUXM_20200712.0000.00_10.0_eea_43a52d44c1.tgz