Is it better to avoid seats that are permitted since many years(>4 yrs)?

Is it better to avoid seats that are permitted since many years(>4 yrs)?

Zynerd website says you cannot register even in same state with permitted seat, is that true?

Can you go for fellowships in India or abroad, after getting degree in a permitted seat?

If for example, the seat is permitted since 2012 and gets recognised in 2025, will that mean all batches before 2025 will also get their seats recognised?

Ashok Paskalraj Sir please help