Question

1: Why did permanent settlement fail?
2: Why did mahalwari settlement fail?
3: Why did ryotwari system fail?

Answer 1

Dear student you should ask single query in a thread
The permanent settlement failed because of the following reasons
Due to a condition where if Zamindar could not pay the fixed revenue amount, here the loss was compensated by selling a portion of the Zamindar's land.

It gave rise to discrimination as class distinction in the villages with two classes: Zamindars and tenants.

It was very oppressive for peasents as Peasants were left entirely at the mercy of landlords.