They all won't launch in India. Mi12X with flat panel and upgraded 50MP camera will come to India under 30K and Mi 12 Pro only. 12T Pro might come with snapdragon 8gen1+ edition made by TSMC on their 4nm node. Even though prices are accurate. Few are blunders too.
Redmi Note 12 Pro Max won't come at 20K. It will go above 22K for sure.5G chipset, 8-11 5G bands and great camera software. They were selling snapdragon 732G at 20K. Not possible to sell snapdragon 695/778G or new 7gen1 chipset device at 20K. Not at all possible.
Redmi Note 12 at 12K? Really? Redmi Note 10 with 60Hz Amoled display and snapdragon 678(11nm) arrived at 12K and it later got multiple price hikes. It's good device but not worth that price. Then Redmi Note 12 will come with 90Hz Amoled display and snapdragon 680(6nm but 4G only), I doubt it will remain at 12K even for 4+64 version.
Redmi Note 12 Pro will come with just chipset change. Snapdragon 690 as compared to snapdragon 732G. Even though snapdragon 690 is quiet old chip, it's 5G chip. So I think price will touch 20-22K.
Just checked MIUI 13 Chinese version and MIUI 13 on Indian version on Mi11X. There is hell lot of difference between features and software optimization. So it's not worthy either. We should buy Xiaomi devices only after substantial price drop and only if we can flash cust roms. Otherwise we should not buy it. In Europe, despite having lots of taxes this Mi11X was available at 22K and we got same version at 29K-31K. We are not getting enough with what we paid for. So we should not buy Xiaomi anymore at launch prices.
Other Xiaomi devices you mentioned are pretty trash for the price. Just for software support Xiaomi is charging way too much for Xiaomi Mi 11 Lite 5G NE. Otherwise nothing special.