No settlement ( except conditional settlement ) ,deed can be revoked by an court whatsoever as long as the settlement was done as per law in force at the time of settlement.

No settlement deed can be revoked by any court as long as the settlement was made according to the law in force at the time and place the settlement was made.

Very little if any. The majority of a settlement will not be taxed. Smaller items such as punitive court fees and accrued interest on the settlement amount can be, however. The law article below discuses settlement taxation in more detail.

Civil

By going to a court of law.